This is possibly Kelsy (no 'e') Odell Caplinger. I'm not sure about the druggist part, but his family (possibly from his mother's side) owned a county store in Quitman, Arkansas. Somewhere around this time he moved from Ripley (in Lauderdale Co.). Kelsy Odell Caplinger had one daughter (Bart?) and died just before his son, Kelsy Jenkins Caplinger, Sr. was born (maybe around 1880?). I'm not sure how.
If you have any more specifics about this, or about Kelsy Odell Caplinger's forebearers, I'd love to hear them.
I'm not sure how interested you are in the family going forward, but in case: KJ Caplinger, Sr. opened a "gent's clothing business" with others in Fordyce, Arkansas in 1907 called Home, Shoe and Clothing Company. He later bought out his partners and renamed it Caplinger's. His son, KJ Caplinger, Jr. (born 1912) continued to run the store in Fordyce until he retired (from this business-- he ran many other side ones) in the 1970s. He still lives in Fordyce. He has two children (Kelsy Jenkins III, an allergist in Little Rock and Thomas Ray, a mathematician in Memphis), four grand children (including me) and five great grandchildren. KJ Caplinger Sr.'s youngest son, James Thomas Caplinger, ran another Caplinger's in England, Arkansas after WWII until the 1970s or early 1980s. He also branched out into the automobile business and became president of the American Automobile Association at one point. He lives with his wife Elizabeth in Hot Springs. Their only son died some years ago.