L.B. Mallory (1871–1933) was the 28th Chief Clerk of the California Assembly. He was born Llewellyn Bell Mallory in Nebraska on October 23, 1871. Mallory was educated at Napa Valley College and Stanford University, A.B. 1897. His full-time profession was as a Broker in the Bay Area. His business was located in Los Gatos, California. Mallory served as an Assistant Clerk in the California Assembly in 1909. He was elected for 3 terms as Chief Clerk, serving from 1911 to 1917.
Mallory was associated with the Progressive Party. He was elected Chief Clerk during the Progressive wave of the 1910 election, which swept Progressive standard bearer Hiram Johnson and others into power. After his swearing-in as Chief Clerk in January 1911, Mallory's first act was to appoint Thomas G. Walker, who had served a few days as Chief Clerk during the 1910 extraordinary session, as First Assistant Chief Clerk. In 1915, Mallory hired 21 year old law school student Arthur Ohnimus as a committee clerk. (Ohnimus would quickly rise up through the ranks of assistant clerks and would himself go on to serve as Chief Clerk for 37 years.) Mallory served six years as Chief Clerk. He died in March 1933 at age 62.
In California, the Chief Clerk is a nonpartisan officer of the Legislature, responsible for advising the presiding officer on parliamentary rulings, guiding legislators on legislative procedures, and overseeing the records and votes of the house.