Hi again, in 1871 Raynham & Sarah Stewart have an Eliza Mumford 15 Niece b Middlesex, daughter by the looks of it of William & Ruth E, mmn Ryland
Keyboard86
Eliza isn't with her parents William and Ruth in 1871 either, who are in Islington.
Ref RG10; Piece 306; Folio 35; Page 21
There is another Eliza Mumford born in Hackney c1856 but I think we can rule her out. Which means, as Keyboard has subtly pointed out, we've got a connection from William Mumford to John Mumford.
Just for completeness, I think this is the
other Eliza and family, who we can rule out:
1854 Q2 Marriage: John Mumford & Elizabeth Ann Ison; Hackney; 01b; 435
1856 Q3 Birth: John Mumford (mmn: Ison); Hackney; 01b; 311
1857 Q4 Birth: Eliza Mumford (mmn: Ison); Hackney; 01b; 318
1860 Q1 Birth: Sophia Ann Mumford (mmn: Ison); Hackney; 01b; 351
1861 Q4 Birth: Elizabeth Ann Mumford (mmn: Ison); Hackney; 01b; 344
1863 Q4 Birth: John Mumford (mmn: Ison); Hackney; 01b; 353
Marriage
married: 08 May 1854; West Hackney; banns
groom: John Mumford; fa; bach; coal dealer; West Hackney
bride: Elizabeth Ann Ison; fa; spin; -; West Hackney
grooms father: John Mumford, coal dealer
brides father: James Ison, florist
witnesses: James Ison, Elizabeth Ison
1861 Census - Hackney
John and Elizabeth Ann Mumford, with daughters Eliza and Sophia (both born Homerton)
Ref RG09; Piece 160; Folio 23; Page 40
1871 Census - Hackney
Joseph and Elizabeth Fox, with granddaughters Eliza and Sophia Mumford (both born Homerton)
Ref RG10; Piece 330; Folio 63; Page 55