Here are Nathan McAlister and Sours.
I know Bonaparte’s March pretty well and play it on clawhammer. I learned it from the same players these folks learned it from, Cathy Barton and Dave Para. I learned it when I attended the 2014 Midwest Banjo Camp. It’s a really lovely tune. I think we have this tune because Garry Harrison learned it from Harvey “Pappy” Taylor and his group the Indian Creek Delta Boys popularized it – Old Time music from the Midwest.