Hi Eileen
The baptism in Bishopsgate was on the date you gave. Father John Evans was a Carpenter. Possibly two more there later to the same couple.
I'm afraid that I can still see no sign of your Elizabeth's birth/baptism.
However, a development.
John's birth is in the GRO Regimental Birth Indices
John Evans
place Brighton
year 1815
regiment 55th
vol 1088 page 3
There are at least a few more Evans registrations around that time with the 55th Foot given as the regiment. But with the name being Evans, they may not all relate to John and Isabella!
I noticed Jane Evans because she was on the same page as John
She is 1818, Jersey, vol 1088 page 15
And there is a baptism in St Helier that is interesting (on ancestry)
6 November 1818, Jane, daughter of John Evans & of Isabella Skelton his wife
It doesn't say that John was in the army. But then occupations weren't being given anyway. Names of godparents are there.
There was another one in St Helier, the year before!
5 October 1817, Margueret, daughter of John Evans & of Isabella Skelton his wife.
Godparents Hugh Mitchell, William Smith, Ann Mitchell, Margueret Smith
But I don't think that she is in the army birth indexes.
So the marriage for that couple must surely not be in Jersey, but in London!
5 January 1813, at All Hallows Barking
John Evans + Isabella Skelton.
witnessed by Hugh Mitchell, Margaret ?
If those were the daughters of the army John being baptized in Jersey, I would have wondered whether the godparents were going to be significant. Yet the name Hugh Mitchell pops up.
Perhaps I am reading too much into all this? There was even another 55th Foot John Evans army birth in 1819 in Jersey in those indexes, it is a common name.
It would also be good to know where the 55th were before Brighton.
John