Based on their formation dates, the Morrison County Historical Society and The Charles A. Weyerhaeuser Memorial Museum have tag-team anniversaries.
The Weyerhaeuser Museum, which opened in 1975, is celebrating its 40th anniversary this year. The Morrison County Historical Society, which owns and operates the Weyerhaeuser Museum, was founded in 1936 and will celebrate its 80th anniversary next year. The museum is half as old as the historical society. I’m not a mathematical genius, but I think this is the only time this is ever going to happen.
Celebrating the 40th anniversary of The Charles A. Weyerhaeuser Memorial Museum.