I think it has possibility, but needs some more investigation.
I can’t see the baptism records that Ciderdrinker referred to in post #8.
I think you need to check that it isn’t just an error and should be attached to a Tinniswood baptism on the same day / page.
Do you have Harriet Cobb in Kingston or Surrey area in 1881 census?
William Charles Tinniswood born 1852 Kingston
William Charles Tinniswood (bachelor, upholsterer)
1st marriage 15 mar 1874 Kingston on Thames
To Sarah Smith
1881 census, Hawks Road 1 Excelsior Villas, Kingston on Thames
William C Tiniswood 28
Sarah Tiniswood 26
Charlotte Tiniswood 1
Fanny Tiniswood 2
Willie A Tiniswood 2 months
Charlotte Tiniswood 50 mother
https://www.ancestry.com.au/search/collections/7572/records/216249621891 censushttps://www.familysearch.org/ark:/61903/1:1:QNNY-G6Z?lang=enThey had a lot of children ----
BIRTHS- TINNISWOOD, WILLIAM THOMAS mother - SMITH
GRO Reference: 1877 J Quarter in KINGSTON ON THAMES Volume 02A Page 283
- TINNISWOOD, CHARLOTTE ELIZABETH SMITH
GRO Reference: 1878 J Quarter in KINGSTON ON THAMES Volume 02A Page 302
- TENNISWOOD, FANNY LOUISA SMITH
GRO Reference: 1879 D Quarter in KINGSTON ON THAMES Volume 02A Page 300
- TINNISWOOD, MAY AMELIA SMITH
GRO Reference: 1882 S Quarter in KINGSTON ON THAMES Volume 02A Page 321
- TINNISWOOD, WILLIE ARTHUR SMITH
GRO Reference: 1881 M Quarter in KINGSTON ON THAMES Volume 02A Page 329
- TINNISWOOD, MAY AMELIA SMITH
GRO Reference: 1882 S Quarter in KINGSTON ON THAMES Volume 02A Page 321
- TINNISWOOD, SIDNEY CHARLES SMITH
GRO Reference: 1884 J Quarter in KINGSTON ON THAMES Volume 02A Page 316
- TINNISWOOD, HORACE ARTHUR SMITH
GRO Reference: 1886 M Quarter in KINGSTON ON THAMES Volume 02A Page 348
- TINNISWOOD, LILY SARAH SMITH
GRO Reference: 1887 D Quarter in KINGSTON ON THAMES Volume 02A Page 321
- TINNISWOOD, MAGGIE SMITH
GRO Reference: 1892 D Quarter in KINGSTON ON THAMES Volume 02A Page 305
DEATHTINNISWOOD, SARAH 42
GRO Reference: 1896 J Quarter in KINGSTON-ON-THAMES Volume 02A Page 199
William Charles Tinniswood (49, widower, upholsterer)
2nd marriage 1901 Kingston on Thames
To Emma Harris 39 Spinster