I've two Richard Brains to research. One Richard Brain, married Hannah Moreton, in Bitton on 8.4.1787.
The other Richard married Ann Baggeridge or Baggaridge in Siston on 4.2.1790.
I've also Richard Brain, born to Richard and Mary, 28.11.1762, Hanham.
The Brains also added Lewton to their surnames. Richard Lewton of Kingswood Hill, clockmaker, was a ancestor. We have Brayne, Braine, Brains, Lewtons, Brain Lewtons, and Lewton-Brains, of which I am one!
Some of our Lewton-Brains stayed in Glamorgan.