He's on Emily's birth certificate as Frederick Jervis though - is it possible they would have fabricated both that and the census for some reason?
What if he was already married?
It does seem possible that he might have been using Maria's name, especially if no link to James Jervis can be found.
I am wondering if the man we see with Maria in 1891, the bricklayer's labourer born Bermondsey, might have been Frederick Arthur Roffey.
Emily's marriage in 1919 was witnessed by Percy Leonard Victor Roffey.
Percy was the son of Henry Alfred Roffey and Julia Winters (married 1879).
Henry Roffey was the son of George and Eliza Roffey, and was born in Bermondsey.
In 1861 in Bermondsey, Henry Roffey was 6 years old, and the youngest child in the family was Frederick, 1. The family are in the bricklaying line.
Anyway, in 1871 Frederick seems to be in the Sutton District School.
On Christmas Day 1881, in Hammersmith, Frederick Arthur Roffey, 21, Labourer, son of George, Bricklayer, married Sarah Maria Barratt.
And in 1891, Sarah M Roffey, 30 (I think), is in Hammersmith, married, with three children. But no husband there. I can't find Frederick at all in 1891.
Later, Frederick Roffey gets really naughty. He married Ann Susannah Mitchell in Islington, June qtr 1898, and was convicted of bigamy!
So, is there any chance that Emily Jervis and her marriage witness Percy Roffey were cousins?
John