Facts:   - finalteam: cincinnati reds    - finalyear: 1926    - death place: memphis , tennessee    - statlabel: batting average home runs runs batted in    - position: third baseman    - statvalue: .318 0 81    - throws: right    - debutteam: washington senators    - bats: right    - debutdate: september 26    - death date: 14 october 1971      - birth date: 16 july 1893    - finaldate: september 24    - name: doc prothro    - birth place: memphis , tennessee    - debutyear: 1920   Based on these bullet points, write a short biography describing the life of doc prothro .
Answer:
james thompson `` doc '' prothro -lrb- july 16 , 1893 -- october 14 , 1971 -rrb- was an infielder and manager in american major league baseball .prothro was so nicknamed because he was a practicing dentist before signing his first professional baseball contract at age 26 .his son , tommy prothro , became a successful coach in u.s. college football -lrb- at oregon state university and ucla -rrb- and , during the 1970s , led the los angeles rams and san diego chargers of the national football league .a native of memphis , tennessee , doc prothro was a right-handed hitting third baseman and shortstop for the washington senators , boston red sox and cincinnati reds -lrb- 1920 ; 1923 -- 26 -rrb- , batting .318 in 180 games .he was discovered by baseball promoter joe engel , who managed the chattanooga lookouts at engel stadium .in 1928 , prothro became a manager in the southern association , then one of the higher-level minor leagues , leading the memphis chicks and little rock travelers to four sa pennants through 1938 .in 1939 , prothro replaced jimmie wilson as manager of the philadelphia phillies .in his three full seasons -lrb- 1939-40-41 -rrb- at the helm of the phils , the club remained locked in the national league `` cellar '' -- losers of 106 , 103 and 111 games in successive seasons .prothro 's career mark of 138 -- 320 , with a .301 winning percentage , is the worst record in major league history for managers leading a club for at least three seasons .prothro was fired after the 1941 season and replaced by hans lobert and thereafter returned to the southern association , where he piloted the chicks from 1942 to 1947 .after he retired as memphis ' manager , he remained active as a co-owner of the club .prothro died in memphis in 1971 at the age of 78 .