Yes, Gary Loughheed (often spelled Loughheed or Loughhead) was the second drummer for Lighthouse, the celebrated Canadian rock/jazz fusion band formed in Toronto in 1968.
Lighthouse was unique: 13-piece ensemble with horns, strings, and rock rhythm section. Loughheed's drumming anchored complex arrangements blending jazz improvisation, rock drive, and orchestral textures. His tenure covered the band's commercial peak and most ambitious touring (US, Canada, Europe).
Loughheed continued as a session/touring drummer in Toronto's vibrant 1970s scene. Less publicly documented than Prokop (who became a successful producer) or Dufort, but respected among musicians for versatility and reading ability.
Lighthouse was inducted into the Canadian Music Hall of Fame (2019). Loughheed's contribution—holding the chair during the hit-making years—is part of that legacy.