Looks like he was probably a son of William and Martha, of 5 Pleasant Place, South Myton?
1861: RG9/3593/34/17 (no George as already deceased pre-census).
William Grubb married Martha Turner, Jun qtr 1850 Hull.
The Daughter of John HOOD of Selby Mariner:-
Maudland HOOD married Charles TURNER, Blacksmith, at SELBY 27th November 1794
Claire (Rootschat) has helped me from here:-
Son of Charles TURNER (Blacksmith) [& Mordland Turner (Nee HOOD) ] was Thomas TURNER born October 1802 at Selby.
Thomas TURNER born Selby 6th October 1802 address Hull when Master's Certificate was issued in 1850.
Thomas TURNER Buried Goole 19th March 1854, 52 years old, residence
Wesley Square, Goole ----------
William GRUBB married Martha TURNER 15th April 1850 Hull
Martha Turner of Full Age, Residence Temperence Street, Father - Thomas Turner, Captain.
Son George Wrayton GRUBB born District Hull 1860 (Mother's maiden surname TURNER) -
[George Railton GRUBB died 1861 aged 1 year District Hull]
----------
1847, 20th September, John HOOD TURNER married Mary Grubb, Minor, Spinster, 1847 at Hull
John Hood Turner, of full age, Bachelor, Mariner, Father - Thomas Turner, Master Mariner.
1851 Census,
17 Wesley Square, Hook, GooleJohn TURNER, Head, Marr, 25, Mariner, born Selby.
Mary TURNER, Wife, Marr, 23, born Kingston upon Hull.
Mary A Turner, Dau, Un, 2, born Kingston upon Hull.
[John Hood TURNER, born 3rd September 1825 Selby from Mate's Certificate]
1861 Park Terrace, Hook, Goole [John HOOD TURNER away at Port / Sea, separate Census sheet]
Mary TURNER, Head, Married, 33, born Hull, Yorkshire.
Mary A. TURNER, Daur, 12, born Hull, Yorkshire.
Robert Gaulb TURNER, Son, 9, born Goole, Yorkshire.
[Census transcription has error & should be Robert Grubb TURNER]
Mark