Well, I ordered the birth certificate for the first child of John PITCHER and his wife Margaret and it shows that Margaret was formerly COCHRANE, and John's occupation given as "Guard on a Railway" so the marriage found by you, BumbleB was the right one after all.
Everything else about John PITCHER is based in Carlton Colville or later in Lowestoft, so I was not expecting to find a marriage much outside Suffolk. However, I suppose a railway guard could well finish up in London for a while
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Many thanks, BumbleB and anns.
