From the record
“Cheever-Cain Ranch is a historic ranch located at 8 Trails End Road in Powder River County, Montana, near the community of Volborg. George and Martha Cheever, along with their daughter Lucretia and her husband Ernest Shy, claimed the land under the Homestead Acts in 1905.”
Wikipedia article Cheever-Cain Ranch, CC BY-SA 4.0.
One of 2 National Register listings published here for Powder River County · listed in 2010 · category: District.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service