In the 1930 Census for Polk County, IA, Des Moines, there is a Robert L. Yoder listed with his parents and siblings as follows:
Harry F. Yoder, age 38 Mabel G. Yoder, age 34 Ruth E. Yoder, age 16 Harold H. Yoder, age 12 Robert L. Yoder, age 8 Dean R. Yoder, age 0 Leona L. Rusking, age 58, Wd, mother-in-law
This family is also listed in the 1920 census.
Then, in 1910, there is a Harry F. Yoder, age 18, living in the household of John R. Yoder (or Yoders?).John R. was age 52 with wife Mary, age 49.Their children were Charles, age 17, and Irene, age 12.Harry F. was listed as a boarder, along with Fred, age 25, Rena, age 16, and Agnes, age 15. There was also a mother-in-law, age 67, in the household, but I could not make out the name.
I was not able to find Harry F. Yoder in Polk County in 1900.