Hi Neil
Thanks for your note. I appreciate your comments about "needle in haystack searches". That's what I've been doing!
The only things I have to go on for definite are from the 1881 census where he is living in Hull, Yorkshire and says his birthplace is Croydon, Surrey. He is listed as a Chelsea pensioner but my searches at Kew have failed to locate any pension records for the same reason: no regiment or discharge date (which is how the records are organised at Kew).
Because of his age I think its likely he served in the Crimea (but this is guesswork) as he would have been age 27-30 in 1854-56. Being a pensioner, and not appearing in census 1851-1871 I guess this covered his army time (but again it's guesswork).
At Kew, I searched WO97 for the Surrey/Yorks regiments and I have also had someone search the Crimea Medal Roll for the 19th Regiment (Norths Yorks) without success.
My guess is that the most likely are the Yorkshire, London/South regiments and possibly the Lancashire ones (there are a number of different Bibby families in Lancs, which can be confusing). Also our name is misspelt in many records (Bibbee, Bibbey, Dibby, Bybee being some I've seen).
I would appreciate any you can search for me to eliminate them from my search.
Thanks
Paul