Originally born as a railroad town encampment named Prescott Junction, Seligman was officially named in 1886 after Jesse Seligman, a railroad financier. After the decline and eventual delisting of the Route 66 from the United States Highway System in 1985, Angel Delgadillo (of Seligman) went on to found the Historic Route 66 Association of Arizona. Thus earning himself many nicknames including “the Guardian Angel of Route 66”. Eventually Route 66 associations were founded in all eight US 66 states with similar goal: preserving the once-important road.