Hi,
In case it helps Cheshirebmd give William's name as William Wilfred SUTTON. There is this birth,
William W SUTTON Jun Q Birkenhead 8a 797
mmn: GAHAN
Regards,
Daisy
And freebmd gives a marriage between a William R Sutton and Isabella Gahan in Mar qtr 1914, Liverpool 8b 65
Further details from Ancestry:
16 Mar 1914, St Nicholas, Liverpool, after banns
William Richard Sutton aged 23 bachelor mariner Resident at Edmund St, father Henry Sutton, mariner
Isabell Gahan aged 22 spinster Resident at Edmund St, father Thomas Gahan, railway porter