He possibly left from there for the America, at any rate I could not find mention of him in the Wisch archives in Dinxperlo. The first big wave of Achterhoekers left approximately between 1845 and 1850. Sander could have left in 1865 at the earliest, and probably belonged to the group of people who left due to encouraging messages from earlier emigrants. I have found Gerrit in Muscatine Iowa. In the fed.
Any further information is welcome.
I have found Derk's marriega in Alto, Fond du Lac Coutny, Wisconsin while looking for info about Anton Heezen. Later Derk moved to South Dakota. Anton Theodor hat Gertud Polmann zur frau, die am 6.Marz 1846 in Drempt bei Doesburg geboren ist. Mit Entlassungsurkunde vom23.August 1881 wandert die Familie nach Nordamerika aus. I do not know if Aleida and Dietrich emigrated too.