Sixth Generation of Steam

By David Degraffenreid
Published on September 1, 2004
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John's granddaughters (fifth generation) on the 1/2-scale Keck Gonnerman in the early 1970s before it was finished.
John's granddaughters (fifth generation) on the 1/2-scale Keck Gonnerman in the early 1970s before it was finished.
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Mark DeGraffenreid (fifth generation) behind the wheel on John's 1/2-scale Keck-Gonnerman.
Mark DeGraffenreid (fifth generation) behind the wheel on John's 1/2-scale Keck-Gonnerman.

Well, it has been almost 26 years since this article was first
started, but it’s been 36 years in the making. The fifth
generation turned out two girls and a boy (and then 10 years later
two more fifth generation girls came along), and now we have a
sixth generation of engineers.

My father, third-generation engineer John DeGraffenreid, wrote

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