Ancestors of Robert Alton Ridder

                             /--Howard Ridder
                     /--John Edward Ridder
                     |       |       /--John L. Harvey  b. 15 JUL 1837 at   d. 19 DEC 1919
                     |       \--Minnie Harvey
                     |               \--Susan Shillingburg  b. 29 NOV 1851 at   d. 8 SEP 1913 =>
             /--John Walter Ridder
             |       \--Edith Medora Tucker
Robert Alton Ridder  d. 10 JAN 1977
             \--Jane Allen Acker