+--Frederic Albert Holbrook  (8 JAN 1911-4 DEC 1957)
Gerald Clinton Holbrook 
|                       +--George Spangenberg  (JAN 16 A.D.-1710)
|                    +--John William Spangenberg  (26 JAN 1699-JAN 17 A.D.)
|                    |  +--Elizabeth Neses  (JAN 16 A.D.-1708)
|                 +--John August Spangenberg  (JAN 17 A.D.-JUN 1787)
|                 |  |  +--Heinrich Schenckel  (JAN 16 A.D.-JAN 16 A.D.)
|                 |  +--Susanna Schenckel  (JAN 16 A.D.-JAN 17 A.D.)
|                 |     +--Anna Margareth (Schenckel)  (JAN 16 A.D.-JAN 16 A.D.)
|              +--Frederick Carl Spangenberg  (26 JAN 1739-SEP 1788)
|              |  +--Illsa Catherine Spiel  (JAN 16 A.D.-JAN 17 A.D.)
|           +--John Spangenberg  (17 FEB 1780-1 OCT 1856)
|           |  |  +--Henry Schenckel  (JAN 16 A.D.-JAN 17 A.D.)
|           |  +--Susanna Shenkle  (1737-1788)
|           |     +--Ann Margaret (Schenckel)  (JAN 16 A.D.-JAN 17 A.D.)
|        +--John Spangenberg  (25 APR 1807-20 SEP 1881)
|        |  +--Mary Fargo  (JAN 17 A.D.-JAN 18 A.D.)
|     +--George Augustus Spangenberg  (11 MAY 1849-2 JAN 1932)
|     |  +--Elizabeth Shaffer  (6 JUN 1812-JAN 18 A.D.)
|  +--Philip Clinton Spangenberg  (4 MAR 1889-11 JAN 1977)
|  |  +--Kathryn Bartlow  (16 SEP 1851-17 DEC 1904)
+--Ruth A Spangenberg 
   +--Florence Traux  (3 APR 1872-26 NOV 1961)