Edwin J. Sprague, a modern renaissance man, has signed a free agent professional players? contract in the National Football League, is an award-winning inventor and author, an entr...view moreEdwin J. Sprague, a modern renaissance man, has signed a free agent professional players? contract in the National Football League, is an award-winning inventor and author, an entrepreneur, and CEO. Sprague, who is married and has two sons, resides outside Philadelphia, Pennsylvania.view less