There are births in 1837, that Iam sure you have seen but here goes anyway.
Dec 1837 Robert Bond Holbeach 14/303
Jun 1838 John Bond Sleaford 14/496
Fleet came under Holbeach.
There is a posting on Curious Fox ,Holbeach page about Robert Bond, is this you? If not it may be a help to contact the person who posted it.
Also it is very possible that Robert Bond simply changed his name to John Haywood to "get lost" as it were. Having left a wife behind to live with another woman, did we not see someone on WDYTYA, who's ancestor had done this....