Sometimes people remain obscure even if they did something that ought to have made them "household names." For an example, first answer this question if you can: "Who was Larry LaPrise?" Then check out this poem by Bob Hicok, "A Celebration of Lasting Achievement." Put your left foot in!
And then it turns out that Larry LaPrise probably did not do what he is credited with doing! And I also learned that this whole topic has a connection to Virginia Tech, where Hicok teaches!