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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 The Mark Twain Memorial Pieter Roos

Pieter Roos

Former

Former Executive at The Mark Twain Memorial

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

$72,229
2024

Total compensation

Pieter Roos has been listed as an employee of The Mark Twain Memorial in Form 990 filings since fiscal year 2018. Total compensation for Pieter Roos has decreased by 11% from 2018 to 2024.

Annual compensation details

$72,229
-56.6%
Former Executive
2024
$61k
--
$12k
--
$166,548
+1.9%
Former Executive
2023
$167k
40 hrs/wk
$163,415
+37%
Executive Director
2022
$164k
40 hrs/wk
$119,285
-18.9%
Executive Director
2021
$120k
40 hrs/wk
$147,000
-3.5%
Executive Director
2020
$147k
40 hrs/wk
$152,405
+87.7%
Executive Director
2019
$137k
40 hrs/wk
$17k
--
$81,196
Executive Director
2018
$71k
40 hrs/wk
$11k
--

Total compensation by year

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Revisions to this profile

January 25, 2026:
2024 The Mark Twain Memorial 990 published
January 25, 2026:
2023 The Mark Twain Memorial 990 published
January 25, 2026:
2022 The Mark Twain Memorial 990 published

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2024

Other employees at The Mark Twain Memorial

Michael L Campbell
EXEC Director EN
$166,416
$152,587 No related comp$13,829
John L Sennott
Interim Executive Director
$22,500
$22,500 No related compNo other comp

Other people named Pieter Roos

2024
Board Member
Pieter Roos
Trinity Church Landmark Preservation Fund Inc.
$0
Board Member
Pieter Roos
Connecticut Trust for Historic Preservation Inc.
$0