| Year | Conference Number | President | Location | Dates |
| 1923 | 1st | O.L. Elliot | Palo Alto, California | |
| 1924 | Association Inactive | |||
| 1925 | Association Inactive | |||
| 1926 | 2nd | Clara Kilbourne | Berkeley, California | |
| 1927 | 3rd | Frank T. Barnard | Corvallis, Oregon | Nov 7-8 |
| 1928 | 4th | J. Pearce Mitchell | Riverside, California | Nov 19-20 |
| 1929 | J. Pearce Mitchell | AACR, Seattle, Washington | April 17, 1929 | |
| 1930 | 5th | E. B. Lemon | Berkeley, California | |
| 1931 | 6th | Charles T. Fitts | Eugene, Oregon | |
| 1932 | 7th | Edwin B. Stevens | Los Angeles, California | |
| 1933 | 8th | Theron Clark | Sacramento, California | |
| 1934 | 9th | E.E. Corbin | Portland, Oregon | |
| 1935 | 10th | Harry M. Showman | Pasadena, California | |
| 1936 | 11th | Karl Cowdery | San Francisco, California | |
| 1937 | 12th | Florence N. Bardy | Walla Walla, Washington | |
| 1938 | 13th | Earl M. Pallett | Hollywood, California | |
| 1939 | 14th | John A. Anderson | San Francisco, California | |
| 1940 | 15th | Dean Newhouse | Eugene, Oregon | |
| 1941 | 16th | Ellen L. Deering | Santa Barbara, California | |
| 1942 | 17th | Ernest L. Rea | San Jose, California | |
| 1943 | Douglas V. McLane | Because of World War II | ||
| 1944 | Douglas V. McLane | annual meetings were | ||
| 1945 | Douglas V. McLane | not held | ||
| 1946 | Douglas V. MaLane | Sacramento, California | ||
| 1947 | Joe H. West | Seattle, Washington | ||
| 1948 | Michael J. Brickley | Riverside, California | ||
| 1949 | D. Thomas Orderman | AACRAO, San Francisco |
| Year | Conference Number | President | Location | Dates |
| 1950 | D. Thomas Orderman | Portland, Oregon | ||
| 1951 | Herman A. Spindt | Santa Barbara, California | ||
| 1952 | Ethelyn Toner | San Jose, California | ||
| 1953 | William J. Dillon | Vancouver, British Columbia | ||
| 1954 | Harvey Hall | Phoenix, Arizona | ||
| 1955 | Alfred Thomas, Jr. | Berkeley, California | ||
| 1956 | Donald D. DuSault | Spokane, Washington | ||
| 1957 | Louis L. Windmiller | San Francisco, California | ||
| 1958 | Edgar L. Lazler | Long Beach, California | ||
| 1959 | David P. Atata | AACRAO, Los Angeles | ||
| 1960 | David P. Atata | Sacramento, California | ||
| 1961 | Clarence R. Bergland | Portland, Oregon | ||
| 1962 | Howard B. Shontz | Monterey, California | ||
| 1963 | David L. Windsor | Coronado, California | ||
| 1964 | Mary Jane Learnard | San Mateo, California | ||
| 1965 | John E.A. Parnell | Seattle, Washington | ||
| 1966 | 40th | Melvin A. Andorson | Yosemite, California | |
| 1967 | 41st | Stan Berry | Palm Springs, California | |
| 1968 | 42nd | Edward T. White | Honolulu, Hawaii | |
| 1969 | 43rd | Catherine F. Emnaker | Lake Tahoe, Nevada | |
| 1970 | 44th | Elmer “Hans” Wagner | Vancouver, British Columbia | |
| 1971 | 45th | Jack H. Shirley | Oakland, California | |
| 1972 | 46th | Ralph E. Bigelow | Anaheim, California | |
| 1973 | 47th | Herbert R. Warne | Salt Lake City, Utah | |
| 1974 | 48th | Mary Alice Lee | Portland, Oregon | |
| 1975 | 49th | Wallace E. Gibbs | Fresno, California | |
| 1976 | 50th | Frank Young | San Diego, California | |
| 1977 | 51st | Mildred H. Scott | San Francisco, California | Nov 6-9 |
| 1978 | 52nd | B. Eugene Omey | Spokane, Washington | Nov 5-8 |
| 1979 | 53rd | C. James Quann | Reno, Nevada | |
| 1980 | 54th | Robert R. Board | Tucson, Arizona | |
| 1981 | 55th | Ronald J. Bowker | Honolulu, Hawaii | |
| 1982 | 56th | Robert A. Wilkin | Las Vegas, Nevada | |
| 1983 | 57th | Kenneth E. Mowrey | Monterey, CA | Nov 6-9 |
| 1984 | 58th | Robert W. Spencer | Victoria, British Columbia | Oct 28-31 |
| 1985 | 59th | W.W. Tim Washburn | San Diego, CA | Nov 10-13 |
| 1986 | 60th | William Gowler | Lake Tahoe | Nov 2-5 |
| 1987 | 61st | Seattle, WA | Nov 1-4 | |
| 1988 | 62nd | Long Beach | Nov 6-9 | |
| 1989 | 63rd | Sacramento, CA | Nov 5-8 | |
| 1990 | 64th | John C. Smith | Portland, OR | Nov 4-7 |
| 1991 | 65th | Salt Lake City, UT | Nov 3-6 | |
| 1992 | 66th | Phoenix, AZ | Nov 1-4 | |
| 1993 | 67th | Roger Anderson | Reno, NV (Sparks) | Nov 7-10 |
| 1994 | 68th | Christine Kerlin | Spokane, WA | Nov 6-9 |
| 1995 | 69th | Melanie Bell | Newport Beach, CA | Nov 5-8 |
| 1996 | 70th | Janet L. Ward | Sacramento, CA | Nov 3-6 |
| 1997 | 71st | Ron Heath | Vancouver, Canada | Nov 2-5 |
| 1998 | 72nd | James D. Moore | Palm Springs, CA | Nov 1-4 |
| 1999 | 73rd | Saundra Springfield | Portland, OR | Nov 7-10 |
| Year | Conference Number | President | Location | Dates |
| 2000 | 74th | Nora McLaughlin | La Jolla, CA | Nov 5-8 |
| 2001 | 75th | John M. Finney | Burlingame, CA | Nov 4-7 |
| 2002 | 76th | Sara L. "Sunny" Burns | Victoria, Canada | Nov 3-6 |
| 2003 | 77th | Cliff Ramirez | Coeur de Alene, ID | Nov 2-5 |
| 2004 | 78th | Robert Bontrager | Tucson, AZ | Nov 7-10 |
| 2005 | 79th | Frost Johnson | Sacramento, CA | Nov 6-9 |
| 2006 | 80th | Chris W. Butzen | Honolulu, HI | Nov 5-8 |
| 2007 | 81st | Nirmala Sharma | Salt Lake City, UT | Nov 4-7 |
| 2008 | 82nd | Michele Sandlin | Portland, OR | Nov 2-5 |
| 2009 | 83rd | Mary Neary Morley | Newport Beach, CA | Nov 1-4 |
| 2010 | 84th | David Johnston | Calgary, Alberta | Nov 7-10 |
| 2011 | 85th | Helen Garrett | Seattle, WA | Nov 5-8 |
| 2012 | 86th | Julia Pomerenk | San Diego, CA | Nov 4-7 |
| 2013 | 87th | Sue Eveland | Las Vegas, NV | Oct 27-30 |
| 2014 | 88th | Todd McCollum | Portland, OR | Nov 9-12 |
| 2015 | 89th | Heather Chermak | Anaheim, CA | Nov 1-4 |
| 2016 | 90th | Marc Booker | Las Vegas, NV | Oct 30-Nov 2 |
| 2017 | 91st | James Miller | Spokane, WA | Nov 5-8 |
| 2018 | 92nd | Rayanne Williams | Sacramento, CA | Oct 28-31 |
| 2019 | 93rd | Chris Sweet | Scottsdale, AZ | Oct 27-30 |
| 2020 | 94th | Rebecca Mathern | Virtual | Nov 2-4 |
| 2021 | 95th | Jana Jaraysi | Tucson, AZ | Oct 31-Nov 3 |
| 2022 | 96th | Soraira Urquiza | San Diego, CA | Nov 6-9 |