Well Barry looking at this there is really only one possiblility, that fits, with everything I have looked at, in 1891 Caroline Abbott is with her sister and her husband in Stranton, in 1891 there is a Thomas Robinson, age 22 farm servant. From this I would presume that this is the Thomas Robinson from the 1881 census, only his father was a farmer not a farm labourer, but then looking at his age maybe he handed the farm over and became a labourer.
Not too sure how you could check all this out really.
1881 census
Thomas Robinson, head, age 50, farmer 30acres, born Yorks Gillow
Rebecca, wife, age 40 born Yorks Horsemothersly???(not very clear)
Thomas, son, age 13, scholar born West Hartlepool
John,son, age 17, farmer, born East Hartlepool
Elizabeth, daughter, age 12, scholar born West hartlepool
Rebecca,daughter, age 10, scholar born West Hartlepool
Mary E, daughter, age 7, scholar, West Hartlepool
Sarah Jane, daughter, age 7 months, born West Hartlepool
Henrietta Clarkson,servant,age17, servant, born West Hartlepool
RG11/4908
ed 24 folio 111 page 16
Sorry this doesnt really give you anything 100% but maybe something to work on.
Nicky