Dr. MacLain began to develop super-strong metals for the US Government at the beginning of World War II. While experimenting on iron alloys for use as tank armor, he accidently created the ultra-resilient Vibranium-iron alloy shield that is used by Captain America. After several decades of continued experiments, MacLain finally produced the formula for True Adamantium and gave it to the US Government.
MacLain is one of the world's foremost metallurgists, specializing in developing highly durable metals. He remains remarkably vital despite his advanced age.
These are Timely Comics metallurgist counterparts to Doctor Myron MacLain:Leslie Garden(Human Torch story)[[1]] creator of the metal material Y-9 and Doctor Crandall(Marvex story)[[2]] creator of a new Battle Ship Armor Formula.