I am looking for information on my grandfather, Rudolph Charles Zenklusen. He also went by the last name of Ellis. He was born in 1909 or 1910 in Chicago, IL. His mother was Katherine (Katie). I found them in a 1920 census when Katie was married to a Frank (Franz) Zenklusen in Goldfield, NV. Katie and Frank divorced in the early '20s. I think Rudolph was Frank's step-son, but I can't find any biological information. Katie immigrated in 1907 and spoke Lettish. I don't know her maiden name.