Most of "MS" "History of the McCrohon Family in Australia" is I believe based on documentation, but the sources are not quoted. (He refers to study at State Librariers, LDS, State Archives etc) The part about the runaway marriage is I think is a family story, how they supposedly met her in France and had a runaway marriage. We know now that John McCrohon, 4th Foot, married a Emily Banham at St. Thomas Winchester 23 June 1826 (have copy of the marriage registration). Their son John was supposedly born in Portugal 25 July 1827 according to MS, which would fit with the marriage. Whether the birth information was recorded in a Family Bible, we hope to find out. We have the TNA records of John's Military Records - when, where he joined 4th Foot etc, his ranks and times and places of service, including seven years in West Indies. Some of this MS seems to refer to, but I can see some errors in assumption. I think it would be better to speak to MS privately. I think he is an older person who did this out of respect for an elderly uncle who was related to him by marriage. He has very generously made this information available with no copyright claimed and fair use for non-profit purposes is permitted. His History comprises over 40 pages and so there is a lot of time and effort put into the McCrohon story.