Balk

I am looking for information on Ralph Balk.He married Jenny Strating or Vonstrotten B: abt. 1835 maybe).They had a daughter named Winnie (B: abt. 1875)who married Jacob Sikkema (B: abt. 1875).I don't know where any of them were born, but I found them living in Whiteside Illinois in a Census.Any help is appreciated!Thank You