Hello and thanks for your interest. So far I have ruled out one Jennie Harbour, from those in London during the appropriate timeline. I'll be spendng a month in London during October/November, and hope to make contact with the British Library and Inland Revenue at that time. I'm hoping that with access to work records, I will be able to connect the most probable Jennie Harbour I have found, with the Raphael Tuck Comppany, for which she worked. Can you tell me which of her works your Mother has purchased? I have been collecting her works for possible inclusion in my tentative book and would be most grateful if she would share copies and dates of the works she has. I look forward to hearing from you again.