Gayle, if you think this is the right family, here is William in 1910 and 1920:
1910 Atoka Co., OK: William "A" Hobbs, age 50, b, MS, farmer Julia, age 15 Myrtle, age 13 John R., age 10 Apparently the mother has died by 1910.
1920 Pittsburg Co, OK: William R. Hobbs, age 60, farmer John R., age 19 Jim Hudson, age 34, son-in-law Mary Hudson, age 34, dtr. Myrtle Hudson, age 14, g-dtr. Mamie Hudson, age 12, g-dtr. William, age 9, g-son Bessie, age 6, g-dtr. Lily, age 5, g-dtr. James, age 2, g-son Ina, age 9 mos., g-dtr.
I live in TX.Let me know if I can help further. Sandra