I am Alison Openshaw(nee Gregory) and I am the grand daughter of Rosalind Crosse who was the sister of your great grandfather who went to Australia. I presume you have seen our family tree as I see Ian Kelly has been in touch with you. Unfortunately my tree is on Genes Reunited.
I have recently been to Keswick in the Lake District and seen the house where Walter grew up and visited his parents graves in the churchyard. Would you like any photos of them?
I remember Norma when she visited the UK when I was a girl (I'm now 68!) I hope she is well. My mother used to write to her about the family history and I think Norma mentioned the portrait. My mother died 8 years ago.
I am glad you are interested in your ancestors and that you are a Walter Crosse!