(17 FEB 1872-MAY 1943)
+---Edwin Kenneth Bragg
| +---Lexy MacKay 
(1896-1949)
Margaret Anne Bragg
+---Eileen Regan
(17 FEB 1872-MAY 1943)
+---Edwin Kenneth Bragg
| +---Lexy MacKay (1896-1949)
Margaret Anne Bragg
+---Eileen Regan