hi Dave,,,,had a look on the igi for children born to a John Bone and a Harriet,,,,,found 2 girls Harriet Emily b 1877 and Ethel Mary b 1882 both born Greenwich.
there is this family
1881 census 10, Tyler Street, Greenwich
RG number: RG11 Piece: 726 Folio: 84 Page: 63
Reg. District:Greenwich
Sub District:Greenwich East
Parish:Greenwich
Address:10, Tyler Street, Greenwich
County:London, Kent
BONE, John Head Married M 46 1835 Carpenter Greenwich Kent
BONE, Harriett Wife Married F 38 1843 Greenwich Kent
BONE, Harriett Daughter Single F 3 1878 Greenwich Kent