[9] Following the 1906 San Francisco earthquake and fire, a test case was brought before Judge Kerrigan to establish land title since so many legal records were destroyed.

At that time, Kerrigan sought the appointment to the open seat of Justice Henry A. Melvin, who died during his term.

[17] Again, in November 1921, Kerrigan was a strong contender for appointment to the high court when Frank M. Angellotti retired, but he was not picked.

[18] In November 1922, Kerrigan won election as an associate justice of the Supreme Court of California, serving from January 8, 1923, to February 11, 1924.

In February 1932, he was the trial judge for the case seeking to block construction of the Golden Gate Bridge, in which he upheld the legality of the special purpose district.

[24] In August 1935, President Franklin D. Roosevelt announced that Superior Court Judge Michael Joseph Roche would succeed Kerrigan, instead of Congressman Clarence F. Lea, who had sought the post.

[29] Kerrigan was an early bicycle aficionado, and was president of both the Associated Cycling Clubs in 1897,[30] and the next year of the Bay City Wheelmen.

[35] In December 1909, Kerrigan and his friends in the Olympic Club ran a four mile course capped by a mid-winter swim in the Pacific Ocean.