He starts by paying homage to the great boiler men of the past: Evans, Stephenson and Robert Fulton. Stephenson is especially interesting because he was illiterate til he was 18 and some of his inventions were presumed to be stolen because he had such a gruff exterior.
Hawkins begins his book by explaining what goes through his mind when he arrives at the shop, smells the air, and looks around:
That's beautiful, isn' it? Few things are more interesting in print than a man explaining his passion for his work. Imagine what Shakespeare or Eugene O'Neil could have done with raw material like this!
If you've never heard of this it may be because Von Braun believed an Earth-orbiting space station had to be built first, and he was talked out of that by a young American engineer from the Grumman company.