Resistance 1940-1945
Mrs. Anne-Maria Douma (* 15-12-1930 in Amsterdam and married to Johan Snip * 11-12-1927 in Amsterdam), tells a remarkable story about her father Peterus (Piet) Douwma (married to Anna Christina Otto) is found at the link below:
‘Peterus Douwma, a skipper born on July 27, 1903 in Amsterdam / Netherlands, gassed in June 1942 in the provincial clinic Bernburg. (Prisoner number unknown)’
Source: https://www.pietdouwma.nl