(15 FEB 1876-20 MAY 1955)
+---Ivie Burcon (Bert) Gibson (09 NOV 1895-02 JAN 1970)
| | +---Edward Harvey Thomas (ABT 1832-04 JUN 1914)
| +---Harriet Ann (Annie) Thomas 
(29 SEP 1876-07 APR 1954)
| | +---Thomas Edwards
| | +---Joseph Edwards (02 OCT 1710-)
| | +---Robert Edwards (11 AUG 1754-11 NOV 1804)
| | | +---Johanna Ingram
| | +---Charles Edwards (30 NOV 1783-02 MAY 1857)
| | | | +---William Mortimer
| | | +---Mary Mortimer
| | +---Robert Edwards (30 JUL 1807-19 MAR 1880)
| | | | +---John Burnside
| | | | +---John Burnside (-BEF 1807)
| | | +---Harriet Burnside (ABT 1785-19 DEC 1853)
| | | | +---Robert Walker
| | | +---Mary Ann Walker
| | | +---Elizabeth ?
| +---Harriet Edwards (18 OCT 1844-15 NOV 1911)
| +---Mary Ann Matthews (29 FEB 1804-08 JAN 1849)
John Douglas Gibson (15 MAR 1925-)
+---Dorothy Myrie Park (17 JAN 1889-09 AUG 1950)