Alex Matthew Jackson
| +---Frederick Edwin Bragg (17 FEB 1872-MAY 1943)
| +---Edwin Kenneth Bragg
| | +---Lexy MacKay 
(1896-1949)
+---Deborah Joan Bragg
+---Eileen Regan
Alex Matthew Jackson
| +---Frederick Edwin Bragg (17 FEB 1872-MAY 1943)
| +---Edwin Kenneth Bragg
| | +---Lexy MacKay (1896-1949)
+---Deborah Joan Bragg
+---Eileen Regan