Dutch trawler tug Catharina Gertrudis sunk according to the Dutch newspaper De Telegraaf dated 12 July 1920
An item dated IJmuiden,
Netherlands 12th reported
the arrival of the crew of the tug trawler Catharina Gertrudis (IJM120) sunk at
the North Sea after striking a mine or a
wreck. Apparently she was the third of her kind lost that same week.