Johnson S State of Iowa

Hi!
I'm looking for some info regarding my father's side of the family.I don't have much and would really like to get pass this road block. This is what I have.

Curtis Homer Johnson 1939 Iowa to May 8 2001 Red Bluff, Ca Married Mary Lou Katie Hardmeyer
Curtis James Johnson 1913 Iowa to 8/7/2003 Iowa Married Edna Fessler
Curtis James Johnson 1887 Illinois Married Mary Bartle

If anyone can help me with the Johnson or Bartle side I would greatly appreciate it.

Thanks