Hi Mary and Brian
A problem area indeed! Was Emily's father John or Richard Evamy - records are inconsistant, but family memory is that he was John, confirmed by the childhood ink sketch by Sir John Millais of his grandfather John Evamy. Were they one and the same person? This Millais connection is confirmed by family papers I have inherited.
I'm also confused by two apparent sisters - Emily Mary (1791-1896), who married into the Millais family, and Emily (1804-1831). Certainly Brian and I are descended from the Emily who died in 1831 (in Demerera (now Georgetown, Guyana), again, confirmed by family papers.
Cheers
John