Must be a different Bob Carmichael or Bruce Staples is way off in Frontier Flies. He says Bob Carmichael was born in 1898 or 1899 and died in 1959.
Also on the subject of Carmichael having Martinez tie his flies, Staples says "Although a superb tier Bob was not of the temperament to grind out dozens of flies. This was performed by Donnelly, Martinez and persons under their tutelage."