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Heartland Historic Preservation Conservation

  • Saint Louis, MO
  • Tax-exempt since March 2003
  • EIN: 75-3074727

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Arts, Culture and Humanities / History Museums (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$196k (2024)

Expenses
$155k (2024)

Total Assets
$3.27M (2024)

Total Liabilities
$74.1k (2024)

Source: Form 990 tax filings from 2010 to 2024

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2024

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$195,976
Expenses
$154,748
Net Income
$41,228
Net Assets
$3,192,793
Notable Sources of Revenue Percent of Total Revenue
Contributions $122,125
62.3%
Program Services $73,805
37.7%
Investment Income $13
0.0%
Bond Proceeds $33
0.0%
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $24,000
15.5%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $3,266,864
Total Liabilities $74,071
Net Assets $3,192,793
Compensation
Key Employees and Officers Compensation Related Other
Mark Trout (President Chairman) $0 $0 $0
Kristen Trout (Vice President Secretary) $0 $0 $0
Fred Obermoeller (Board Member) $0 $0 $0

Document Links

990
Filed on Oct. 30, 2025

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$200,893
Expenses
$238,991
Net Income
-$38,098
Net Assets
$3,151,745
Notable Sources of Revenue Percent of Total Revenue
Contributions $58,441
29.1%
Program Services $142,452
70.9%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $18,000
7.5%
Assets/Debt
Total Assets $3,205,849
Total Liabilities $54,104
Net Assets $3,151,745
Compensation
Key Employees and Officers Compensation Related Other
Kristen Trout (Vice President Secretary) $18,000 $0 $0
Fred Obermoeller (Board Member) $0 $0 $0
Mark Trout (President Chairman) $0 $0 $0

Document Links

990
Filed on Oct. 31, 2024

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$368,677
Expenses
$347,865
Net Income
$20,812
Net Assets
$3,280,034
Notable Sources of Revenue Percent of Total Revenue
Contributions $79,064
21.4%
Program Services $119,613
32.4%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $170,000
46.1%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $18,000
5.2%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $3,427,356
Total Liabilities $147,322
Net Assets $3,280,034
Compensation
Key Employees and Officers Compensation Related Other
Fred Obermoeller (Board Member) $0 $0 $0
Kristen Trout (Vice President Secretary) $0 $0 $0
Mark Trout (President Chairman) $0 $0 $0

Document Links

990
Filed on Nov. 3, 2023

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$179,022
Expenses
$314,320
Net Income
-$135,298
Net Assets
$3,099,511
Notable Sources of Revenue Percent of Total Revenue
Contributions $131,250
73.3%
Program Services $23,977
13.4%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $23,795
13.3%
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $4,200
1.3%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $3,316,318
Total Liabilities $216,807
Net Assets $3,099,511
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
Kristen Trout (Vice President Secretary) $4,200 $0 $0
Fred Obermoeller (Board Member) $0 $0 $0
Mark Trout (President Chairman) $0 $0 $0

Document Links

990
Filed on Nov. 14, 2022

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$156,822
Expenses
$194,440
Net Income
-$37,618
Net Assets
$2,976,859
Notable Sources of Revenue Percent of Total Revenue
Contributions $142,636
91.0%
Program Services $12,809
8.2%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $1,377
0.9%
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $8,622
4.4%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $3,164,959
Total Liabilities $188,100
Net Assets $2,976,859
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
Kristen Pawlak (Vice President/Secretary) $5,400 $0 $0
John Maurath (Board Member) $4,800 $0 $0
Mark Trout (President/Chairman) $0 $0 $0

Document Links

990
Filed on Nov. 16, 2021

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$492,949
Expenses
$230,532
Net Income
$262,417
Net Assets
$2,787,752
Notable Sources of Revenue Percent of Total Revenue
Contributions $354,732
72.0%
Program Services $95,647
19.4%
Investment Income $1
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $42,570
8.6%
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $37,400
16.2%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $2,992,895
Total Liabilities $205,143
Net Assets $2,787,752

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$484,993
Expenses
$208,730
Net Income
$276,263
Net Assets
$2,730,478
Notable Sources of Revenue Percent of Total Revenue
Contributions $350,397
72.2%
Program Services $100,885
20.8%
Investment Income $1
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $33,710
7.0%
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $35,400
17.0%
Professional Fundraising Fees $0
Other Salaries and Wages $7,400
3.5%
Assets/Debt
Total Assets $2,987,478
Total Liabilities $257,000
Net Assets $2,730,478
Compensation
Key Employees and Officers Compensation Related Other
Mark L Trout (Chairman) $18,000 $0 $0
John Maurath (Secretary) $14,400 $0 $0
Kristen M Pawlak (Board Member) $3,000 $0 $0

Document Links

990
Filed on Nov. 14, 2019

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$506,390
Expenses
$218,469
Net Income
$287,921
Net Assets
$2,454,216
Notable Sources of Revenue Percent of Total Revenue
Contributions $331,335
65.4%
Program Services $131,544
26.0%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $43,511
8.6%
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $46,500
21.3%
Professional Fundraising Fees $0
Other Salaries and Wages $5,500
2.5%
Assets/Debt
Total Assets $2,650,838
Total Liabilities $196,622
Net Assets $2,454,216
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
Mark L Trout (Chairman) $22,500 $0 $0
John Maurath (Secretary) $14,400 $0 $0
Kristen M Trout (Board Member) $9,600 $0 $0

Document Links

990
Filed on Nov. 15, 2018

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$326,557
Expenses
$200,183
Net Income
$126,374
Net Assets
$2,166,295
Notable Sources of Revenue Percent of Total Revenue
Contributions $166,409
51.0%
Program Services $118,569
36.3%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $41,579
12.7%
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $53,300
26.6%
Assets/Debt
Total Assets $2,411,856
Total Liabilities $245,561
Net Assets $2,166,295
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
Mark L Trout (Chairman) $19,500 $0 $0
John Maurath (Secretary) $15,000 $0 $0
Kristen M Trout (Board Member) $13,800 $0 $0

Document Links

990
Filed on Nov. 14, 2017

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$457,501
Expenses
$200,711
Net Income
$256,790
Net Assets
$2,039,921
Notable Sources of Revenue Percent of Total Revenue
Contributions $284,989
62.3%
Program Services $124,945
27.3%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $47,567
10.4%
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $40,000
19.9%
Assets/Debt
Total Assets $2,314,421
Total Liabilities $274,500
Net Assets $2,039,921
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
Mark L Trout (Chairman) $19,500 $0 $0
John Maurath (Secretary) $12,500 $0 $0
Kristen M Trout (Board Member) $8,000 $0 $0

Document Links

990
Filed on Aug. 12, 2016

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$411,449
Expenses
$196,327
Net Income
$215,122
Net Assets
$1,783,131
Notable Sources of Revenue Percent of Total Revenue
Contributions $230,148
55.9%
Program Services $135,541
32.9%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $8,821
2.1%
Sales of Assets $0
Net Inventory Sales $36,939
9.0%
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $40,500
20.6%
Assets/Debt
Total Assets $2,155,894
Total Liabilities $372,763
Net Assets $1,783,131
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
John Maurath (Secretary) $19,500 $0 $0
Mark L Trout (Chairman) $15,000 $0 $0
Kristen M Trout (Board Member) $0 $0 $0

Document Links

990
Filed on Aug. 14, 2015

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$428,062
Expenses
$170,045
Net Income
$258,017
Net Assets
$1,372,009
Notable Sources of Revenue Percent of Total Revenue
Contributions $326,463
76.3%
Program Services $73,098
17.1%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $28,501
6.7%
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $39,063
23.0%
Assets/Debt
Total Assets $1,804,482
Total Liabilities $432,473
Net Assets $1,372,009
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
Mark L Trout (Chairman) $21,063 $0 $0
John Maurath (Secretary) $15,000 $0 $0
Kristen M Trout (Board Member) $1,000 $0 $0

Document Links

990
Filed on Aug. 11, 2014

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$294,913
Expenses
$115,396
Net Income
$179,517
Net Assets
$1,113,992
Notable Sources of Revenue Percent of Total Revenue
Contributions $294,913
100%
Program Services $0
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $59,250
51.3%
Assets/Debt
Total Assets $1,520,814
Total Liabilities $406,822
Net Assets $1,113,992

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$604,603
Expenses
$112,637
Net Income
$491,966
Net Assets
$934,475
Notable Sources of Revenue Percent of Total Revenue
Contributions $604,567
100.0%
Program Services $0
Investment Income $36
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $62,000
55.0%
Assets/Debt
Total Assets $1,132,600
Total Liabilities $198,125
Net Assets $934,475

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2010

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$123,189
Expenses
$88,769
Net Income
$34,420
Net Assets
$442,509
Notable Sources of Revenue Percent of Total Revenue
Contributions $109,485
88.9%
Program Services $0
Investment Income $104
0.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $625,519
Total Liabilities $183,010
Net Assets $442,509

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF
990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2009

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2008

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2007

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2006

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2005

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

About This Data

What Is This Data?

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

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About Nonprofit Explorer

Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

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