Was contacted by Retta, a McMillen researcher, in regards to a match with Eileen's DNA on Chromosone 1. She asked to share family trees, and I believe we have a match through the McMillen family.
Eileen's maternal 3rd-great grandfather, James E. McMillen (b. 1811) was born in New York and the family migrated on to Marshall County, Indiana. The theory that Retta and other McMillen researchers is putting forth is that James was the son of the James & Keziah McMillen of Cussewago Twp., Crawford County, Pennsylvania. Retta directed me to another McMillen research, Mary Urban's tree at Ancestry.
This James & Keziah had at least 4 childen who appear in census records in Crawford/Erie Cos., PA as well as Niagara/Erie Cos., NY where members of the Willard family (who married McMillen) are located.
James McMillen was born circa 1780 Rhode Island was buying land in 1829 in Crawford County, Pennsylvania.
The DNA match shows a connection, now it is just a matter of finding the paper records to tie them all together. I have found a few other McMillen's in Marshall County, Indiana and have forwarded their contact information on to Retta. Hopefully, the paper trail will be able to match up soon.