+--John P. Derr  (JAN 17 A.D.-JAN 17 A.D.)
   +--John Peter Derr  (2 JAN 1788-18 NOV 1866)
+--Peter Derr  (27 JUN 1815-28 SEP 1889)
|  |                 +--Jan VonBorculo  (BEF 1660-JAN 16 A.D.)
|  |              +--Harmen Jans VanBorculo  (JAN 16 A.D.-JAN 16 A.D.)
|  |              |  +--Jannet   (JAN 16 A.D.-JAN 16 A.D.)
|  |           +--William Hermnese VanBarkelow  (JAN 16 A.D.-JAN 17 A.D.)
|  |           |  +--Willempje Warmers  (ABT 1635-ABT 1697)
|  |        +--Jacques (James) Barkelow  (ABT 1700-ABT 1780)
|  |        |  |  +--Jacquas Cortelyou  (1625-1693)
|  |        |  +--Martha Cortelyou  (ABT 1669-ABT 1721)
|  |        |     +--Neltje VanDine  (1635-1693)
|  |     +--Barrnt (Barnett) Barkelow  (24 MAY 1730-1805)
|  |     |  +--Jannetje (Jane) Bernjtsen  (ABT 1705-AFT 1780)
|  |  +--Cornelius Bartlow  (4 NOV 1760-4 DEC 1833)
|  +--Ann Bartlow  (28 DEC 1793-21 DEC 1882)
|     |  +--John Shamp  (JAN 17 A.D.-JAN 17 A.D.)
|     +--Catherine Jane Shamp  (1770-2 APR 1839)
Peter H. Derr  (9 NOV 1854-12 FEB 1855)
+--Elizabeth Fague  (12 NOV 1824-18 DEC 1899)