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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 Winnetka Historical Society Mary Trieschmann

Mary Trieschmann

Key employee

Executive Director at Winnetka Historical Society

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

$63,841
2024

Total compensation

Mary Trieschmann has been listed as an employee of Winnetka Historical Society in Form 990 filings since fiscal year 2019. Total compensation for Mary Trieschmann has increased by 66.2% from 2019 to 2024.

Annual compensation details

$63,841
+3.8%
Executive Director
2024
$64k org
24 hrs/wk
$61,501
-2.9%
Executive Director
2023
$62k related
--
$63,345
+14.3%
Executive Director
2022

Total compensation by year

Compare the compensation of Mary Trieschmann to:

2024

Other employees at Winnetka Historical Society

Meagan McChesney
Curator
$60,654
$60,654 from orgNo related compNo other comp
Jennifer Miller
Administrative Assistant
$27,235
$27,235 from orgNo related compNo other comp
Karis Baker
Administrative Assistant
$0
Holly Marihugh
President
$0
Carrie Hoza
Vice President
$0
Susan Sullivan
Secretary
$0
Maris Rosenfeld
Program Coordinator
$0
Helen Weaver
Treasurer
$0
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Revisions to this profile

January 25, 2026:
2024 Winnetka Historical Society 990 published
January 25, 2026:
2023 Winnetka Historical Society 990 published
January 25, 2026:
2022 Winnetka Historical Society 990 published

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