Meijer Duis owned a certified plumbing company in Amsterdam and was also a qualified and certified electrician. In addition, from the 1920s to about 1935, he had a shop at Weesperstraat 1 (next to the Herengracht) selling electrical and sanitary supplies.
Meijer Duis was a fervent sport fisherman and loved the outdoors. Towards the end of his life, he proved to be a talented amateur painter.
In …