Think they may be the same, Eliza was Eliza Harriett when she married oops, just realised they can't be the same ... then again maybe they are Eliza Harriett Dade mmn Slade Jun 1866
Sarah married William Watts, and is witness on one of the above marriages; Eliza who was in the 1841 census with Thomas and Grace died age 15; Emily had a illegitimate son called Samuel in 1849, not traced them yet; William b1834 no idea ...