[6][7] His maternal grandfather, Benjamin Morange, who served as the French Minister to Spain under Napoleon I,[8][9] moved to the United States about 1815[4] and helped found the B'nai Jeshurun Congregation in New York in 1825.

[12] In 1874, de Young denounced San Francisco Judge Delos Lake, which led to the two meeting in California Street for a duel during the busiest time of day.

It was not long before he came under attack from the San Francisco Chronicle's editor-in-chief, Charles de Young, who was backing another candidate.

In response, Charles de Young ambushed Kalloch in the streets of San Francisco and shot him twice.

[13] In 1884, de Young's brother, Harry, commissioned a bronze statue of Charles, erected at the Odd Fellows Cemetery in San Francisco which cost in excess of $10,000 (equivalent to $339,000 in 2023).