The question of whether Susan BOXER bapt 2 Mar 1721/2 daughter Richard & Margaret BOXER married either Thomas SPEARPOINT or James MORFORD is resolved by Margaret BOXER's will, written 1773 probate 1778 PRC 16 / 450b /12.
"my daughter Susan the wife of James Morfit, Folkstone, Baker"
Most on-line trees have opted for her marrying Thomas SPEARPOINT. The flaw in the logic at your first (Ryeland) link is that whilst Susan Boxer Spearpoint was aged 80 in 1702 and hence the right age, there is no evidence to say Susan Boxer Morford was the wrong age. Its not reported there, but in fact her burial in 1783 gives no age. So although it had been used as a discrimator, it is not.
Thanks for the Freemen data link - I'll certainly follow that through