This seems to be the only Frank born Tewkesbury in the 1911 census - age is right...
MORRIS, Henry Head Married M 51 1860 Brewers Drayman Gloucestershire Tewkesbury VIEW
MORRIS, Mary Wife Married28 years F 49 1862 Gloucestershire Tewkesbury VIEW
MORRIS, Henry George Son Single M 22 1889 Plumber And Glazier Gloucestershire Tewkesbury VIEW
MORRIS, Frank Thomas Son Single M 20 1891 Clerk Gloucestershire Tewkesbury VIEW
HOPKINS, Edith Agnes Sister In Law Single F 34 1877 General Servant Domestic Gloucestershire Tewkesbury VIEW RG number: RG14 Piece: 15286 Reference: RG14PN15286 RG78PN925 RD325 SD2 ED6 SN156 Registration District: Gloucester Sub District: Gloucester Northern Enumeration District: 6 Parish: Gloucester Address: 12 Swan Road Kingsholm Gloucester County: Gloucestershire