Barclay Graham Plager Jr. - Born March 26, 1941 in Kirkland Lake, Ontario - February 6, 1988 in Creve Coeur, Missouri was a Canadian/American ice Hockey defenceman and coach.

- J. Ross Robertson Cup Junior Champion 1959 with Peterborough TPT Petes.

- George Richardson Memorial Trophy Champion 1959 with Peterborough TPT Petes.

- Adams Cup Champion 1964 with Omaha Knights, 1977 with Kansas City Blues.

- Clarence S. Campbell Bowl Champion 1969, 1970 with St. Louis Blues.

- Tommy Ivan Trophy Winner as MVP of CHL 1977 with Kansas City Blues.

Stanley Cup finalist 1968, 1969, 1970.

Plager made his NHL debut with St. Louis Blues on November 29, 1967 vs Los Angeles Kings at St. Louis Arena in a 3-2 Blues win.

Plager scored his 1st NHL goal vs Les Binkley of Pittsburgh Penguins at 19:27 of 2nd period on December 29, 1967 at St. Louis Arena in a 2-1 Blues win.

Plager played in 614 regular season NHL games, scoring 44 goals (6 GWG), 187 assists with 1115 penalty and 68 NHL playoff games, scoring 3 goals (1 GWG), 20 assists with 182 penalty minutes.

Plager was named the 2nd captain in St. Louis Blues history in 1970, being captain until 1976.

Plager played in NHL All-Star Games 1970, 1971, 1973, 1974.
At the All-Star Game February 9, 1988, a moment of silence was held at the St. Louis Arena in his memory.

His jersey No. 8 was retired in St. Louis on March 24, 1981.

Barclay Plager was inducted into the St. Louis Blues Hall of Fame in 2023.

The Plager Brothers were inducted into the Missouri Sports Hall of Fame in 2014

NOTE
Barclay was the oldest of three Hockey playing brothers (with Bill and Bob). The three Plager brothers played together for four seasons in St. Louis, with Barclay and Bob together on the Blues' defence for eleven seasons, then widely seen as the "Plagers' team".

Also, Barclay and Bob Plager are the only brother duo in the history of pro Hockey to be player/coaches on the same team in the same season - 1977-78 Salt Lake Golden Eagles of Central / Central Professional Hockey League.