Concerning Rudolph Decker was born 1866-1886 in St. Louis: You might check with the St. Johns United Church of Christ in Mehlville for info. My grandfather, Charles Henry Decker, was raised (and ordained) in that church (when it was the Evangelical Church). They have a fairly large and old cemetery with several Deckers listed. My gggrandfather was Conrad J. Decker (1831-1904) married to Johanna Marie Christine Diester. Their son, Carl Heinrich Decker (1860-1901), married Maria Louisa Hoffman. Carl had one sister and one brother, Christian Heinrich (1867-?) Carl and Maria had five sons and four daughters, one son being Johannes Rudolph Decker (1891-1987). I realize those dates don't match with the Rudolph you are seeking, but this might give you a place to start. "My" Deckers are from South St. Louis. Good luck on your search. Diane Good Topeka, KS