Henry R. Rose was the 29th Mayor of Los Angeles from July 1913 to July 1915. He only served for one term. He was regarded as "anti- [trade] unionist". He was at first against the Mulholland annexation proposal but, after taking office, he switched positions.

According to the Los Angeles Times

Los Angeles Times

The Los Angeles Times is a daily newspaper published in Los Angeles, California, since 1881. It was the second-largest metropolitan newspaper in circulation in the United States in 2008 and the fourth most widely distributed newspaper in the country....

, Rose was: "[a] socialist and progressive, Rose was also a crack pistol shot, winning many matches, even against the police chief."