Thanks for asking this question! I just found a DNA match to one of my WikiTree cousins, via Andrews-926, Francis Andrews. This is exciting for me, despite my minimal knowledge of DNA research, since it appears to confirm some of the WikiTree family lines.
I found my cousin Coleman-1637, John Coleman, through running a "one-to-many" DNA comparison test at GEDmatch, and was delighted to see that he had done excellent genealogical tree work here at WikiTree, so I could confirm at WikiTree that John and I are 9th cousins, and both of us share the same great-great....-great grandfather, Francis Andrews. A one-to-one DNA comparison shows that John Coleman and I have a match on chromosome 18. My GEDmatch kit number is A787246 (Cynthia Larson). Since most of the rest of my genetic make-up is Swedish, Swiss, and Norwegian, and since John Coleman does not have any known Scandinavian ancestors, this looks very promising as possible confirmation of biological evidence for some of the children being correct for Francis Andrews--and hopefully, more such matches will follow and be documented, so we can learn more!
Our one-to-one DNA comparison shows we have a match on chromosome 18. My GEDmatch kit number is A787246 (Cynthia Larson)