Hello Susan,
My name is Andrew Holt and my partner is Lydia Marshall. I have been tracing her family tree for about two years now and came across your RootsChat message this morning. You are correct about Henry being a photographer as his father A.W.Marshall had a studio in Devonport Tasmania where Henry helped out and seemed to have developed an interest. I have attached a photo of Henry.
Lydia's relationship is great grand daughter of Henry Charles. To explain this further Henry Charles' father was Alexander W Marshall. Alexander's brother was John Boyd Marshall who is Lydia's great grandfather.
Elizabeth in Canberra appears to be related to John Boyd Marshall's sister Elizabeth Jane Brown (nee Marshall) who married William Thom Brown. Interestingly, William Brow's eldest son Matthew was seriously wounded at Gallipoli in 1915, however, he was hospitalised in Egypt then UK and returned to another unit in France only to be killed in action 4 days later as Le Barque in Feb 1917.
As with Elizabeth in Canberra, Lydia and I would really love to see some of Henry's photographs. I haven't been using RootsChat for very long and I really need to establish contact with Elizabeth now that she is known to us through your message (and this forum) which we are so very grateful to you for sharing.
We look forward to hearing from you soon
Best regards
Andrew and Lydia