Greetings to all on this message board

I am hoping to request a look up for a marriage when someone has the opportunity to look into the appropriate records.
Details as follows:
Groom - George Montague BURTON in Devonport, England
Date - 10th July 1847
Bride - Unknown
Genuine apologies for not being able to narrow further to a specific church.
Background information that may assist:
This fellow seems to be a bit of a rogue

He has popped up in my ancestry as the second husband of my 3x gr.grandmother.
On the marriage certificate to my 3x gr.grandmother in 1869, Victoria, Australia, George Montague BURTON is widowed (March 1867) and all 5 children of this first marriage are indicated as dead.
Various documents indicate his place of Birth as Dublin Ireland, however one mentions Devonport, Plymouth.
His parents are noted as Alfred Leopold BURTON - Ordinance Officer and Mary Ann BARNAN (?sp)
His d.o.b appears to be c1820/1821 based on the sum of many documents!
I would be very grateful for any light that can be shed on this group. I have tried all soughts of online lists but have been foiled so far!
Thank you in advance to those considering this query. All suggestions gratefully received.
Kind regards,
Laura Roemkens