Only 1 I can find who is a Mariner in the 1891 Census;
John Layton, 36, (1855) Mar, Crew, Master of Vessel, born Upton on Severn, Worcestershire
Joseph Layton, 31, Mar, Crew, Mate, born Upton on Severn, Worcestershire
On the Anglesea Basin Vessel in Hammerwich, Staffordshire