I have a Theodore Lederer born in 1924 in my family tree. His parents were Max Lederer b. 1885 in New York and Lillian Hobach b.1891, and he had a sister, Leona Lederer, born in 1917.Theodore would have been my 2nd cousin once removed (whatever that means!). My maiden name was Lederer.
If this is your Uncle Ted, I can tell you a lot about the family!