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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Employees International Spy Museum Mary Henderson

Mary Henderson

Officer

Secretary at International Spy Museum

Fiscal year ended December 31, 2024. Published on January 25, 2026.

$90,314
2024

Total compensation

Mary Henderson has been listed as an employee of International Spy Museum in Form 990 filings since fiscal year 2017. Total compensation for Mary Henderson has increased by 53.3% from 2017 to 2024.

Annual compensation details

$90,314
-0.6%
Secretary
2024
$73k org
40 hrs/wk
$18k other
--
$90,883
+12.6%
Secretary
2023
$72k org
40 hrs/wk
$20k other
--

Total compensation by year

Compare the compensation of Mary Henderson to:

2024

Other employees at International Spy Museum

Tamara Christian
President and Chief Operating Officer
$520,230
$472,240 from orgNo related comp$47,990 other
Christopher Costa
Executive Director
$425,200
$380,833 from orgNo related comp$44,367 other
Melissa Ricks
Vice President - People and Culture
$251,540
$209,533 from orgNo related comp$42,007 other
Kathryn Mannix
Vice President - Exhibits and Collections
$250,165
$203,657 from orgNo related comp$46,508 other
Michael Kruelle
Vice President, Operations
$230,008
$201,358 from orgNo related comp$28,650 other
Timothy Miller
Vice President - Technology and Faciliti
$229,387
$200,142 from orgNo related comp$29,245 other
Pam Fitzgerald
Treasurer
$0
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Revisions to this profile

January 25, 2026:
2024 International Spy Museum 990 published
January 25, 2026:
2023 International Spy Museum 990 published
January 25, 2026:
2022 International Spy Museum 990 published

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$80,728
+12.2%
Secretary
2022
$68k org
40 hrs/wk
$14k other
--
$71,936
+19.4%
Secretary
2021
$62k org
40 hrs/wk
$11k other
--
$60,262
-12.6%
Secretary
2020
$48k org
40 hrs/wk
$13k other
--
$68,929
+11.5%
Secretary
2019
$54k org
40 hrs/wk
$16k other
--
$61,810
+4.9%
Secretary
2018
$51k org
40 hrs/wk
$12k other
--
$58,919
Secretary
2017
$50k org
40 hrs/wk
$10k other
--

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