Thanks to Ludwig Kraayenbrink for the huge contribution to data base in WikiTree! The data has allowed me to tie in my family data into the tree. At age 79 I am a late getting into this business. November 2018 I took an autosomal test with FTDNA. All these matches showed up with partial trees attached. Building onto Ludwig's data I have been able to link several to my family tree.
Time consuming but fun. And apologies to Ludwig for required mergers. The variations of spelling names in the Aalten/Dinxperloo/Suderwick area has made it interesting.