You are very welcome to join in the discussion. The more the merrier. The information that you have contributed is very interesting. Thank you for that.
I believe Jocelyn has already answered your question as to whether Alice Marian Dudley married David Christie-Murray or not. He mentioned Alice Marian Dudley in his will, which he is supposed to have written in Feb 1901 (died Aug 1907), and referred to her as his 'dearly loved companion'. They had four children together from 1893-1901 for which we have not been able to find official birth entries.
I am related to Walter Dudley, he was my ggg grandfather on my mother's side.