I don't know if this will help but I have baptism info on two George Bruce's around 1634.
George b. 1629 s/o William Bruce and ? from Longside, Scotand
George b. 1633 s/o Rot.(sic) Bruce and Elizabethe Halyburton of Clackmannan, Scotland
This info is from the Scotland parish records at www.scotlandspeople.gov.uk