Fiscal year ending 2024. Filed on November 18, 2025.
40 Shirley Street
Winthrop, Massachusetts 02152
Winthrop Improvement & Historical Association (EIN: 04-6054758) has filed an IRS Form 990 since fiscal year 2017. In its fiscal year 2024 IRS Form 990 filing, Winthrop Improvement & Historical Association, a 501(c)(3) charitable organization, reported compensation for 11 employees. Among the employees shown here, the average compensation is $0.
Revenue
Expenses
Employee compensation
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