My step-great grandfather was John Simon Lachner. He married my great grandmother Fredericka Elizebeth (Lizzie Francis) Dietz Hamje. She married John on 5/5/1901 in New York. My great grandfather was Jacob D. Hamje who died 3/31/1900. John and Lizzie had two children: Dora (Doris) Lachner and your father, George W. Lachner. I think I have a pic of your Dad so let me know if you would like.
Do you have any info on Dora?