The Hamilton County Historical Society, identified by EIN 23-7004201, is dedicated to historic preservation through its operation of the Plainsman Museum, which features exhibits and hosts programs and events in Hamilton County. With an operating budget of $172,000 and total revenue of $162,200 for the 2024 filing year, the organization relies on multiple funders, none of whom contribute 50% or more of its revenue. While specific funding sources remain undisclosed, the Society actively engages the community in preserving and celebrating local history.