I know there are a few threads on here related to these two, but has anyone managed to find a marriage record for them?
They had two children that I can find a record of - William Brain born 1821 and Jane Brain born 1823.

I also suspect that they were still married when Susannah married John Ruck in 1826.

I too have found no evidence of them being married. But I think that it is more likely that they never married. See my previous posting:

http://www.forum.forest-of-dean.net/index.php?id=30869

Also Susannah was listed as spinster when she married John Ruck.