Hi David,
I found two Thomas' married in 1826/27
7 Feb 1826 Thomas Bourke and Mary Ryan- William Ryan and Mary Flannery
22 Feb 1827 Thomas Bourke and Catherine Finn- David Bourke and Mary Grady
Its very Unlikely to find his parent as records only start 1814 which would be too late for his birth.
Regards
?ine