Just looking at the 1861 - have we had it before? I think we mentioned it but not listed it out:
RG9 1166 30 8
David Beaumont 24 Carter bn Wenham
Adelaide " 20 bn Ipswich
Sophia Mower 54 widow mother-in-law bn bury St Ed
so Sophia calls herself a widow, and Adelaide is still Adelaide born in Suffolk - but like you, Sue, I would say there is a fair chance she is the same as Susan born in Middlesex....