Thanks for the marriage. Being listed as Haggard explains why I didn't find it and why I wasn't happy with the James Hagger/Mary Ann Andrews registered much earlier in Saffron Walden, when they would barely have been of age to marry!
Jane b.c.1858 Theydon Bois m. Henry Price, Dec Qtr 1881 West Ham District (which includes Walthamstow) where they were living in 1891 Census.
Thanks too for the details of John and Harriet.
Regards, Steve