Surprisingly, "famous Iowans" is not an oxymoron, but a regular feature
in the Des Moines Register
, a prime example of what another Iowa-expat I know calls "Iowa propaganda." If you're from Iowa (acid test question: What is The Big Peach?) but have lived elsewhere, you know what I mean.
In any case, click on the alphabetical listing on the right sidebar of the "Famous Iowans" page. You can check out the Iowa creds of anybody from Felix Adler
to the Wright Brothers
(who lived in Cedar Rapids for a time). Heh.