I am the son of Jos Schregardus who retired from Shell Tankers in 1984. Jos sailed as 2nd, 1st mate and as a captain on tankers of Shell. When his vessel was in Rotterdam Europoort for bunkering I always came on board as a child, later as teenager and even when I was sailing as an engineer for the Royal Dutch Navy. I remember some names of vessels he was sailing on such as: Achmea, Onoba, Vitrea, Macoma (2), Kosicia, Capulonix. I will see if I can find some notes on which vessels he sailed in which years. Maybe people sailed with him.