Hello, just wondering if you've made any progress on your line?My line of Vermillions is one of the few groups that stayed in MD/DC past the big surge of heading out west in the mid 1800s.So the fact that your group stayed as well, makes me think that we may connect.
A quick search of the census shows that your Roy is the son of Henry Vermillion, who is the son of George W. Vermillion b. 1866, who was the son of John Vermillion b. about 1815 and Eliza.- I'll have to defer to the Vermillion researchers for anything before that.
All Vermillions from PG County will eventually go back to Giles and Jane.
Hope that helps - please double check - again, it was just a quick search on ancestry.com.