In this exclusive video masterclass, Findmypast's in-house military expert Paul Nixon explains how to uncover clues in your old military photographs, which in turn can help you further your family research.Using resources from both our military records and newspapers, Paul explains how you can piece together the remarkable stories of your British Army ancestors. Can't watch right now?: No problem. We've summarised Paul's three top tips below, so you can start deciphering your vintage military photographs at your leisure. 1.:…