In 1881 here is the family:
Nathaniel was a beerhouse keeper. Their son William was a fruiterer's shopman. The others were at school. In 1891 their children had presumably flown the nest and they were living alone at Stent Cottage, Jubilee Rd Farnborough. Nathaniel was buried in Farnborough on 13 January 1892, but cannot find a burial for Mary, although a two-year-old Mary was buried in Farnborough on 28th September 1865.
Nathaniel was born in Ireland so you're best off raising a new query and tagging it Ireland - and the same with Mary and America. I have though found an announcement of her death in 1923 at New Rochelle, New York, but she was buried in Novia Scotia. https://www.ancestry.co.uk/interactive/50000/105933820/724555?backurl=https%3a%2f%2fsearch.ancestry.co.uk%2fcgi-bin%2fsse.dll%3fdbid%3d61535%26h%3d2619778%26indiv%3dtry%26o_vc%3dRecord%253aOtherRecord%26rhSource%3d7572&ssrc=&backlabel=ReturnRecord