Together with his brother Arthur, he ran the Leopold Cohen OHG company which was founded by their father. Trustee of the Israel Orphanage, as successor to his father. Member of the War Association and the Marksmans Association (Schutzenvereins). Spent two years in active service in Koblenz-Ehrenbreitenstein and took part in the yearly exercises. On 2nd August 1914 he was called up and served as a sergeant, mostly on the front during the entire First World War. He was decorated with the Iron Cross. He was discharged 21st November 1918. In 1927 he was "Schutzenkonig" and his queen was the mayor, Dr. Hoffmann's wife.
On Sunday 29th October 1938 he and his wife travelled by car to Amsterdam and from there to Brussels and Charleroi with their youngest son Leopold to The Netherlands and Belgium to visit their sons Heinz and Bernd who were there in order to further their education as education in Dinslaken had by that time become almost possible. They planned to ask their relatives to take care of Leopold as well. They returned to Amsterdam and were planning to be back in Dinslaken on Friday 11th November. On Thursday 10th they heard that all the synagogues in Germany had been destroyed and they realised that going home had now become impossible as their house at Bahnstrasse 15 had also been burnt to the ground.
Paid for Heinz's education and upkeep with foreign currency with the permission of the authorities in Dusseldorf. For Bernd, had permission to pay for his education and upkeep in Italy and when he studied in Belgium, a cousin in Amsterdam was asked to assist.
The Dutch authorities granted them temporary residency for the period of time they would have to wait to emigrate and for that time they lived in Utrecht. With the assistance of their family in Canada, they were allowed to emigrate and join them there.
Became Hugo Cowan.