Hi Randy-
I did find out some information. Lloyd Luebbe did marry a lady named Delna Althoff. From his obituary that appears in the Collinsville Herald, Sept. 6, 1977, it does not appear that he had any children.
Gertrude married a man by the surname of Sheetz. There is a possibility she had a son named John, but to date I have not confirmed this information.
Just out of curiosity, is Emil related to your line and if so, would you possibly have more information regarding him?
Thanks.
Kelly