Hi. I am a Gorsline in WI. Will be happy to help. I have access to the statewide 1850/1860 census. I live several hours from Vernon County, but I do get there at least once a year.
I just found another post on Vernon Co site from 1998 re: Sylvester Gorsline, s/o Sylvester Gorsline Sr. Neither name is common, and I strongly suspect a connection, as my g grandfather, James Thomas Gorsline had a brother named Sylvester.
Could Sylvester be brother or father to your Gorsline in Vernon Co?
Since you just discovered his name, I doubt you have further info on the family. If your line does connect, I have the line back to 1500's and am still working on that. Will be happy to share info, and am interested in your line.
Melanie Gorsline Rice
Volunteer Rock Co, WI site