Fiscal year ending 2024. Filed on October 22, 2025.
PO Box 34
Sister Bay, Wisconsin 54234
Sister Bay Historical Society Inc. (EIN: 61-1436554) has filed an IRS Form 990 since fiscal year 2021. In its fiscal year 2024 IRS Form 990 filing, Sister Bay Historical Society Inc., a 501(c)(3) charitable organization, reported compensation for 4 employees. Among the employees shown here, the average compensation is $0.
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Employee compensation
Our mission is to encourage, foster and participate in the documentation, preservation and renovation of artifacts, buildings and sites in Sister Bay Area.
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