He left Butler after the team's first game in early October to move to Texas, succeeding his former Michigan teammate Billy Wasmund, who had died from a fall.

Allerdice played on offense and defense for Michigan, and he also handled place-kicking and punting responsibilities.

At the end of the 1909 season, he was selected as a first-team All-American by The New York Times and syndicated sports writer, Tommy Clark.

At season's end, despite a career record of 33–7 with the Longhorns, Allerdice informed the Athletic Council of his resignation because of the "super critical nature of the Texas fans."

In a draft registration card completed in June 1917, Allerdice indicated that he was working as cattle buyer in Indianapolis.

Allerdice's wife, Cornelia, and youngest son, Anthony, died in the fire from suffocation.