I reckon that Jemima Finch nee Bibby is on the 1911 census at Chigwell, Essex with some of her children. (FamilySearch). The census says she was born at West Maldon, Kent which doesn't exist. So this would be Maldon, Essex which is close to where the Romany communities were.
Unfortunately I still cannot attach her to her parents as there are too many options and she doesn't seem to appear on earlier censuses. A birth record is required.