Only that the fumble occurred during the 1966 season in which the Chiefs went on to play Green Bay in the first AFL-NFL World Championship.

Since Allen was an offensive lineman it can only be assumed this happened during an attempt to recover a fumble by another player.

[6] Allen spent time with the team before the season began but ultimately decided to retire from pro football and keep his family rooted in Kansas City.

At the time of his retirement, Al was married to his wife Diane Reynolds and had 3 young daughters, Jennifer, Monica and Alicia.

This biographical article relating to an American football offensive lineman born in the 1930s is a stub.