Robert C Carson may be Robert Lusk Carson who died at Moyaver 5 Feb 1897. He is buried at Armoy Pres Church. The stone was erected by his daughter Eliza Jane Smyth, USA. I found some family members, including Jane Carson, in Fayette, Pennsylvania, in the 1900 US census. Do you by chance have a church marriage record for Robert and Jane?
http://www.historyfromheadstones.com/index.php?id=522&pa...