Izaak Grobfeld, also known as Kropveld, was a butcher and a shopkeeper. In 1909 he purchased a site to build a house in Vlagtwedde. The City of Groningen owned this land and arranged for hereditary tenure. Izaak Grobfeld was married to Hendel Johanna Cohen. The couple lived at Munnekemoer Oost 27 in Ter Apel.
D. Wolf, De kille Ter Apel. Geschiedenis van de Joodse Gemeente Ter Apel (Ter Apel 1998) …