Found it! The graveyard was a little overgrown, but this end of the graveyard seemed to have been cleared recently. The building in the background is not the church, but the chapel mortuary – one of very few to be found in West Yorkshire. It is boarded up and largely derelict now.
The Hobson’s gravestone is the one to the right of the photograph. David and Mary Hobson are buried here together with their daughters Ann (Mellor) and Marian, their son Joseph and his wife Mary.
David and Mary lived in the property from at least 1850 through to the deaths in 1882. Joseph and Marian (their son and daughter), who were both born in the property, lived there until at least 1911 (their latest census records that are publicly available). Joseph died in 1933, Marian in 1899.
Presumably reusing the plot and the gravestone saved on the costs.
