How did the deem hills in Arizona get their name?

Although I can't be sure this is the reason for the name, Government Land Office (GLO) records indicate that in 1922 Dennis D. Deem homesteaded 160 acres in the south ½ of Section 4 and in 1924 Carl Franklin Deem homesteaded the SW ¼ of the SW ¼ of Section 4 of Township 4 North, Range 2 East of the Gila and Salt Meridian. These parcels are located to the southwest of Deem Hills and the Deems (brothers?) were the earliest homesteaders in the immediate vicinity.