As you obviously didn't have earlier census records I thought I'd take a look, but they are eluding me at present in 1861
I found the marriage - wonderful name
Richard Mole Crocker Stumbles Sept qtr 1859 presumably to Maria Louisa Dyer in East Stonehouse, 5b 495.
So as the name is fairly unique I discovered the family in 1851
13 Hobart Cottages, East Stonehouse, Devon
Abram Stumbles Head M 54 Sculptor Dodbrooke Devon
Mary B wife M 57 Nevis West Indies
Thos M son Un 18 Clerk (Office) Charlottetown P Islands
Rich. M C Son Un 13 Scholar East Stonehouse Devon
HO107; Piece: 1880; Folio: 319; Page: 28
and in 1841
East Stonehouse, Devon
Abraham Stumbles 40 Grocer Y
Mary 45 F
John 15 Y
Robert 15 Y
James 13 Y
Thomas 9 F
Richard 4 Y
/Sarah Haladay 15 F
Martha Haladay 14 F
Joseph Viviani 15 F
HO107; Piece 276; Folio: 24; Page: 43
The Y meaning "Born in County" F means "Foreign Parts".