Hi,
This is a possible connection with your chap:
Name:James GALLAGHER
Year of birth: 1829
Place of birth: High Church, Glasgow, Lanarkshire
Regiment: 2nd Regiment Of Life Guards
I'm afraid I don't have any details of wife etc but he enlisted in 1847 and served 23 years (all at home)and was discharged in 1871.
If this is your chap I have a little more information.
The dates and Regiment seems to fit but not the place of birth.
This website would know for sure the details regarding the uniform and I dare say lots more on the history of the Regiment. It would be great if you could let us know if you get a response ( I'm confident you will
)
www.victorianwars.comHope it helps.
Regards
Adrian