I bet you thought I forgot. It has taken me longer than I thought it would to go find the info. The info came out of the Summerville News.

Chattooga Boys:
1962: Paul Quinn
1974, 1975, 1976: Jack Mayo
1978, 1980: Fred Toney (1980: the site has a record of 17-7 while the S. News has a final record of 15-9; the paper has Toney with a record of 53-28 for 1978-80)
1982, 1984, 1986: Lamar Turner
1989: Melvin Moseley
1992: Don Henderson
2001: Jeff Martin

Chattooga Girls:
1987: Craig Parrott

Summerville Boys:
1950: coach is correct, but the paper has a final record of 20-2 while site has 23-2.

Summerville Girls:
1951: couldn't find coach; found schedule, scores, starters/subs, found the opening round match-up's of the Northern half of the Region 4A tournament which was played in Summerville, but no coach; I guess they coached themselves; they had won 11 games with 2 more games left in the regular season; Also, Jo Monet coached the S. Girls in the 1949-50 season. She may have coached them in '51, but I'm not sure.

Trion Boys:
1974: Clarence Blevins (had a final record of 11-4)
1927, 1934, 1935: its going to take some more in-depth research to find them, if I can.