I've found conflicting information regarding John W Spencer. Based on a second hand source, John W Spencer died in 1776 and had or was serving as a Lieutenant in the Revolutionary Army. However, at the website http://southerncampaign.org/pen/w6156.pdf
I find a John W Spencer marrying Molly in 1785 and Molly, who's John W Spencer was a Lieutenant seeking a pension in 1838. Are there two John W Spencer's in Charlotte County, Virginia around this time?