"Does anyone know where I would find the identification tag? I looked on the steering shaft and both doors, no luck."
By identification tag do you mean the VIN (vehicle identification number) tag? If so the 1959 model year Corvette VIN tag was mounted with two Phillips heads screws in the drivers side forward door jam between the body side door hinges. Not on the doors. I have attached a sample photo of a '59 VIN tag.
The VIN tag location was moved to the steering shaft housing on the engine side of the fire wall early in the 1960 model year production which was the fall of 1959. So early 1960s have it screwed to the drivers forward door jam. It was spot welded to the steering shaft housing.
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