Complex sentence: Established in 1962, the firm was co-founded by Murray Edmund Watts, Arthur Thomas Griffis, and Jack McOuat, each of whom have been inducted into the Canadian Mining Hall of Fame.
Split into simpler sentences: Established in 1962, the firm was co-founded by Murray Edmund Watts, Arthur Thomas Griffis, and Jack McOuat. Both Mr. Watts and Mr. Griffis were inducted into the Canadian Mining Hall of Fame.