Many thanks Brian! I had a quick look at the document and will read it more closely later this week. As you say, it provides a wealth of information on the BC AA defences. I know my dad was stationed in Tofino, Point Grey (Vancouver), Ambleside (West Vacnouver), Little Mounttain (Vancouver), Sea Island (Vancouver/ Richmond) and, of course, MacCaulay (Esquimalt) - all mentioned in the document. A lot of movement. As the Japanese threat disappeared, he was sent to the UK for infantry training. Then back to AA post-war.