Hey everyone,
A big thankyou

to everybody whose pitched in.
When I get a chance to duck into the library next to work today (ooooh how tempting!), I'm going to chase the addresses on the 1843 marriage, and to see if I can find evidence of another Richard/Letitia or at least a widowed Richard/Letitia that might fit...
In terms of this marriage, am I right in saying the options are:
1. Letitia is lying about her maiden name, marital status and/or Father's name on the 1843 marriage. Possibly because she was born out of wedlock, or had been married before. This would explain the paper-stainer link, and fits in that there's no other marriage we can find.
2. Letitia is lying about her maiden name on the birth certificates. Don't know why, but she could be.
3. That's not my couple. Either:
A. There's another wedding out there (non-conformist? Dreadfully mistranscribed?), or:
B. They just didn't bother with a wedding.
This option would explain the late marriage and name difference, but not where my couple came from or what happened to the 1843 couple (unless Letitia Fotbes died and the 1851 Lambeth Richard is the widower).