Hello,
I have a Mary & William Gray on my cousins tree, the children do not match your details, but they match the message from "finch".
here are the details-
William Gray born around 1800 Aylesbury, a soldier then agricultural labourer. Died 1867 in the workhouse, High Wycombe, buried in Holy Trinity Church, Lane End, on 14 March 1867. Wife Mary born around 1803 died by 1841, children Henry born 1831 Lane end, a cordwainer (shoemaker). Charles born 30 Oct 1836 Lane End, baptise 26 Nov 1837 Holy Trinity, Lane End, also a cordwainer. William born Dec 1833 Lane end, baptised 29 Dec 1833 Holy Trinity, Lane End, Died 26 Aug 1834 Lane End, buried at Holy trinity, Lane End 29 Aug 1834.
Son Henry went on to marry Martha Carr and had 8 children, if you think they are your family please let me know and I will give you details.
Regards Vita.