Christopher John Forrest
| +---Thomas Jackson (08 JUL 1828-18 AUG 1907)
| +---William Jackson (22 JUL 1860-11 APR 1938)
| | | +---William Judd (1802-15 JUL 1876)
| | +---Harriett Judd 
(06 JAN 1841-17 MAR 1918)
| | +---Ann Sayers or Sears (1810-23 APR 1870)
| +---William George Jackson
| | | +---Thomas Heard
| | | +---Thomas Heard (-26 JUN 1899)
| | +---Anne Maria Heard (08 JUL 1871-)
| | | +---Samuel Hind
| | +---Charlotte Hind (15 MAR 1852-NOV 1902)
| | +---Maria Morgan
+---Priscilla Dorothea Jackson
+---Margaret Brideson Hunger