April 21, 1963 Virginia 500 at Martinsville.
http://bench-racing.blogspot.com/2012/04/april-21-this-day-in-petty-history-part.html
April 21, 1974 Gwyn Staley 400 at North Wilkesboro.
http://bench-racing.blogspot.com/2012/04/april-21-this-day-in-petty-history-part_21.html
April 20, 1980 Northwestern Bank 400 at North Wilkesboro. And it may just include a bit of insight into my preferred high school apparel and hair style.
http://bench-racing.blogspot.com/2012/04/april-20-this-day-in-petty-history.html
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Schaefer: It's not just for racing anymore.
updated by @tmc-chase: 04/20/18 09:48:39AM