In 2011, I made a presentation to the Friday-afternoon LIFE (Learning is For Everyone) get-together. Subject was "Destined to Study Earth - the Making of a Geologist in Wisconsin."
The talk was uploaded to YouTube, but I took it down...
The PowerPoint (modified 2015) can be viewed online here (new window).
The whole talk is available for download here as an MP4 file (big! 178+ MB!).
More about Earthiness and Wisconsin:
Other Links from the PowerPoint: