From Find-a-grave and CWSS:

Samuel Marshal "Sam" McKamey
born 11 April 1836 Sullivan Co.,TN: died 26 July 1909 Johnson City, Washington Co., TN (of dropsy per Obit); buried Oak Hill Cem., Johnson City, TN
Married Frances Elizabeth (also bur. Oak Hill)
Dau Lula Blanche (she mar. C E Milhorn)
OBIT: The Comet, Johnson City, TN, 29 July 1909, p2

In & out as Lieut. Co. F 59th TN Mtd. Inf.