Welcome to the Saginaw River Marine Historical Society (SRMHS) website! Formed in 1990, the Michigan-based Saginaw River Marine Historical Society (SRMHS) is a 501(c)(3) nonprofit organization and has members from Bay City, Saginaw, Midland and beyond. The SRMHS is an all volunteer organization interested in the maritime history of the Saginaw River (and its connecting waters).