if you google the name Stalcup (or Stalcop from the swedish "Stalkofta") you can find out from the Stalcup homepages there were a fair number of Stalcops (from Sweden, immigrated to New Sweden/Wilmington, DE in the 1600s)who fought in the American Civil War. Large number of the Stalcups migrated to Southern states and were CSA soldiers (MO, TN, AR, VA)....
Try googling "Stalcup + Cemetery + Trousdale County + Tennesee" as a starting point....
good hunting,
Kenneth Byrd
(my ggg-grandma was a Stalcup)