William_R._Kirby_Sr._House
William R. Kirby Sr. House
Historic house in Michigan, United States
The William R. Kirby Sr. House (also known as the Kirby–Keefer House) is a private house located at 377 State Road in Hillsdale, Michigan. It was designated a Michigan State Historic Site in 1979[2] and listed on the National Register of Historic Places in 1982.[1] It is one of the few early cobblestone houses extant in Michigan.[2]