 In Lyle Alzado's book "Mile High" he recalled Jackson as the toughest man he'd ever met, and told the story of Jackson breaking the helmet of Green Bay Packer offensive tackle, Bill Hayhoe, with a headslap.He had 10 sacks in both 1968 and 1970 and posted a career-high total of 11 in 1969.He was named 1st Team All-AFL by the AP, "Pro Football Weekly", and UPI at the conclusion of the 1968 season and by the AP, NEA, "New York Daily News", "Pro Football Weekly", "The Sporting News", and UPI at the end of the 1969 season.