Marionbe,
You said you had his marriage certificate...that should hold the name ( and occupation) of his father.
CatOne spotted the birth of a Johnson B Emery (March Qtr 1916-Tynemouth Reg. District) with mother's surname or maiden surname of Mason.
There is an interesting marriage on FreeBMD.. June Qtr 1916 , Morpeth Reg District. William J Emery/Ellen J Mason
Then thereafter in Morpeth RD, there are other Emery/Mason birth registrations.
Michael Dixon