William Crabb BATES married Charlotte LUCKING, Mar qtr 1840, Stepney, 2 379
Charlotte BATES died Sep qtr 1859, Ongar, 4a 48
William Crabb BATES possibly married Mary Ann HOAD, Dec qtr 1860, Ongar, 4a 85.
Lookes like Charlotte was mother to all of them
William aged 55 and his wife Mary aged 55 were in Fyfield, next door to a Samuel LUCKING, who could well have been a brother to Charlotte above.
William Crabb BATES died Mar qtr 1864, Ongar, 4a 56
Perhaps Mary his widow married again.
Could not find Ann anywhere in 1871 or 1881, but did find possibly her brothers William and Samuel, who were butlers.
From the IGI if you do not already have it - submitted entry
William BATES married Mary CRABB, 15 Nov 1814, Chipping Ongar, Essex
Ian C