For one suggestion, you can do a "Ship Search" at http://www.convoyweb.org.uk/hague/index.html. This is a page from the excellent website ConvoyWeb which lists the names of ships in convoys during World War II, with originating and destination ports, applicable dates and other information. I did a search for MARINE ROBIN and found her in 17 convoys between September 1944 and June 1945. Click on the link for each convoy for more information. Additionally at the bottom of the results page is "To continue the search for OTHER voyages of MARINE ROBIN, click here." Following the link may show other voyages, as when she was not in convoy but steaming independently. The above website will cover only 1944 and 1945.
Ron Carlson, Webmaster
Armed Guard / Merchant Marine website