{geni:about_me} * Reference: [https://www.myheritage.com/research/record-1-261710761-1-500049/theodorus-wilhelmus-de-groot-in-myheritage-family-trees?indId=externalindividual-5cf6df902075c9c5a80b8dc8ad768a6a&mrid=ac9ddf2ff7fe7b42e0dc423a60cc7d6c MyHeritage Family Trees] - [https://www.geni.com/projects/SmartCopy/18783 SmartCopy]: ''Dec 1 2017, 0:12:40 UTC''
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