My dad's mother was a Gorsline. Here's the line from Josse Gosselin to me:
Josse Gosselin b 1701m. Alizabeth Albertus Joseph Gorsline b. 1736m. Sarah Leverich Richard Gorsline b. 1775m. Sarah Wood David Gorslineb. 1802m. Clarissa Worden Richard Asa Gorsline b. 1831 m. Hannah Rouse Mark D. Gorsline b. 1865m. Ida Goodrich Mary Leone Gorsline b. 1908m. Jesse Becker Fredric Becker b. 1932 m. Norma Ruth Clark Christopher J. Becker b. 1959
So, Josse is our mutual ancestor, in both cases he's our 7th great grandpa, which makes us 8th cousins.
There's a pretty good Gorsline genealogy website, I think it's gorsline.net. Have you checked that out?