Orra E. Monnette died in Los Angeles California in 1936; his death was noted in the Los Angeles City Council minutes following the passage of a resolution in his honor. In addition to the placement of a memorial bronze bust of Monnette honoring him in the lobby of the Main Library, in 1961 his complete genealogical library of over 1,700 books on the subject and history, along with genealogical notes were given to the Los Angeles Public Library System. The book collection remains an important part of genealogy section for the Central Library, and the private papers and genealogical notes are held by accessible in the manuscript division. In 2006, the remainder of Monnette's personal papers were given to the Huntington Library in San Marino, California.