Just to recap, in case my thinking has gone out of whack... records indicate that this is one and the same woman who:
- married as Rachel Hamilton, son of John, in Ballymoney in 1890;
- had the first two Beckett children in Ireland as Rachel Downey in 1891 and 1893;
- was Rachel Simpson for the Scottish Beckett births;
- was Rachel Beckett m.s. Simpson according to her son James Beckett at his 1919 marriage;
- was Rachel Hamilton, daughter of John Hamilton and Elizabeth Simpson, according to the same son James in 1949.