I was unable to find this Jane Vogan, born 1784, on the 1850 Census or on the 1870 census. No one ever answered my query..until you did. It was a dead end for me.
I would be interested in learning the Vogan line you are researching. I have found a great deal of Vogan information over the years. Perhaps I may have something on your line. If you can tell me where your family settled and who your earliest Vogan was, perhaps I can add to what you have found. Sorry I couldn't place Jane Vogan for you.