Really stumped on this one without ordering the marriage certificate

I have a Frederick Samuel Burnett born (as shown on the 1939 National Register) on 10th March 1885. He is living at 51 Whitehawk Crescent, Brighton with his wife Daisy and 3 children.
He died in the Brighton area in 1953 and states that based on age at death he was born in 1885.
The last detail I have on him specifically was that he was living at 3 Totland Road, Brighton in 1920 on the Electoral Roll with others at the address Cuthbert and Mabel Pont (maiden name Barnes) with Mabel at this address in 1911 when she was Mabel Barnes.
Frederick married Daisy V Brayne in Q1 of 1915 in Brighton, Sussex but apart from this its like he's a ghost on 1891, 1901 or 1911 census and no birth registration shows for a Frederick Samuel Burnett in 1885 either

really stuck here

Any help or ideas (other than ordering the marriage certificate) would be welcome! Thanks