In the entire history of the franchise, the Minnesota Vikings have only held the #1 overall pick in the NFL Draft twice. The first was in 1961, before the team had ever played an NFL game. The second time was in 1967, when they wound up with the #1 overall pick courtesy of the trade that sent quarterback Fran Tarkenton to the New York Giants. With the first pick in that 1967 NFL Draft, they selected offensive tackle Ron Yary from the University of Southern California.
Yary wound up having a Hall of Fame career in the NFL, spending the first 14 years of his career with the Vikings.