I have been trying for a very long time to find the above marriage which I assumed to be on IOM. Their daughter Agnes Florence Rennie was born in Ivy Cottage Peel 26 Nov 1885. He was a mariner. Julia gave her name as Rennie formerly LeMaitre, which was her birth name but I had been looking for for a marriage to Robert calling herself Julia Palmer which was her first husband's name, so when I got the birth cert I then started searching again. There is no saying that she didn't slip in another marriage between Palmer and Rennie, but I feel this was not the case, so I tried various concoctions and still came up with no success. I concentrated on 5 years before birth date of their daughter in various places that had family connections. Julia was born in Guernsey, moved at some point with her Palmer family to France and obviously spent some time in IOM. I have knowledge of all of her Palmer children but John died somewhere at sea on a date nobody knows and I am assuming that John Rennie did too. Julia was widow Rennie on 1891 census - greengrocer in Deneiol Pwllhelli Wales and was later living in Liverpool with one of her married Palmer daughters, where she died. Perhaps the reason for coming to the Island from either Guersey or possibly France where they also lived with John Palmer was because living in Peel was a Robert and Agnes Rennie who may possibly have been John Rennie's parents and my grandfather's boyhood was spent in Peel (Albert Palmer) Last Palmer child I believe was born to Julia was in France in 1872 so between then and the year that the Rennie daughter was born in 1885 is a mystery and first sighting on the IOM for any of my Palmers was also in 1885 (September) and again at Ivy Cottage in Peel when daughter Annie Palmer gave birth to a son, Albert Arthur Palmer (father not named) None of my Palmers were on the 1881 census for IOM.
I may have missed obvious clues searching for the marriage which could have been performed just about anywhere on the high seas! Many thanks for your time reading this; wanted to give as much info as I could.