Firstly, my apologies for taking so long to respond to your message. Bertram Letts was an older brother of my grandfather. What I know about him I got from a notebook my mother left me, but some of the imformation is a bit muddled, so I don't know how much is completely correct. She wrote he married Charlotte (Lottie) and had a daughter, Rose and son, Charles along with a bit of other information. I would love to learn more about Bertram and answer questions you may have about Harold.