[6] Younger also helped found the San Francisco Wage Earners' Suffrage League (WESL) in 1908, to ensure that the concerns of working women were not forgotten in pursuit of the vote.

At the 1911 Labor Day parade in San Francisco, she drove the WESL float, a wagon pulled by six white horses.

Younger traveled to New York to support striking garment workers in 1913, and happened to be in town to give a memorial keynote speech at the 1916 funeral of Inez Milholland Boissevain.

Younger served as chair of the lobbying committee and participated in NWP pickets at the White House demanding women's suffrage.

In late 1920, Maud Younger drove across the country alone, with a dog named Sandy; this trip made her one of the first women to do a solo coast-to-coast drive across America, the very first being Anita King.