In 1871, Sherrett is boarding with a farmer in Overbury, Worcestershire:
RG10/2677/23/5
Sherreth Holmes, Boarder, 18, Agr'l Pupil, Oxon Ridlington
Head of household is William Creese, 49, Farmer of 650 acres employing 27 men, 12 women, and 8 boys! Plus his wife, sister, 2 nephews, another"pupil", a visitor, and 2 servants.
And I think that Phil means he knows Mary married a Mantell in 1859, but can't find her as Mantell, so is wondering if perhaps she has remarried again by 1871?
MJP