High Quality Content by WIKIPEDIA articles! Arthur Allen Ohnimus (1893-1965) was the longest serving Assembly Chief Clerk in California history (1923-1963). He was also the first Chief Administrative Officer of the Assembly Rules Committee (1957-1963). Ohnimus served under 8 Republican and 4 Democratic Speakers of the Assembly during his 37 cumulative years as Chief Clerk. The California Assembly honored the legacy of Arthur Ohnimus on April 1, 2008 when it adopted House Resolution 28. A 10-minute video tribute to Ohnimus was also produced by the Assembly and is now posted online, along with historic documents and informational brochures