This could go here or in Ireland. Mods can decide. Very interesting pages. http://www dot irishmariners.ie/searchdatabase.php Here's an example of what you may find...found this by just searching with the surname.. ( not one of my Thompsons) Thompson, Albert (Wireless Officer) RS2 No.222946. Born: 1897-07-24, Rathdowney, Co. Queens/laois, Ireland Certificates: 5133 wireless cert Disch A No: 907155 Photo: f5 Voyages: 1919-04-15 Surat ON 104829 of Glasgow (Weir, Andrew & Co (Bank Line)) 1921-07-01 2 ON 136329 1921-08-01 1 ON 144220