| Series W-10 | Peter Maurin Papers, 1918- |
| Series W-11 | Catholic Workers, 1918- |
| Series W-12 | Stanley Vishnewski Papers, 1933-1981, n.d. |
| Series W-13 | Charles M. Butterworth Papers, 1927-1978 (Restricted; consult an archivist for further information) |
| Series W-14 | Deane Mowrer Papers, 1938- |
| Series W-15 | Arthur T. and Elizabeth O. Sheehan Papers, 1929-1975, n.d. |
| Series W-16 | Marc H. Ellis Papers, 1956- (Restricted; consult an archivist for further information) |
| Series W-17 | Nina Polcyn Moore Papers, 1935- |
| Series W-18 | Casa Maria House of Hospitality (Milwaukee, WI) Records, 1966- (Restricted; consult an archivist for further information) |
| Series W-19 | Haley House (Boston, MA) Records, 1966- |
| Series W-20 | Davenport (IA) Catholic Worker Community Records, 1973-1990 |
| Series W-21 | Des Moines (IA) Catholic Worker Community Records, 1976- |
| Series W-21.1 | Frank Cordaro Papers (Restricted; consult an archivist for further information) |
| Series W-22 | David Mason Papers, ca 1941, 1949-1969, n.d. |
| Series W-23 | Los Angeles Catholic Worker Community Records, 1970- |
| Series W-24 | St. Louis Catholic Worker Community Records, 1977- (Restricted; consult an archivist for further information) |
| Series W-25 | Arthur Sheehan House of Hospitality (Brooklyn, NY) Records, 1967-1990 |
| Series W-25.1 | Jacques Travers Papers, 1961-1995, n.d. |
| Series W-26 | Seattle Catholic Worker Community Records, 1974- |
| Series W-27 | Catholic Worker Houses of Memphis Records, 1970-1998 |
| Series W-28 | Casa Maria (Tucson, AZ) Records, 1981- |
| Series W-29 | Bread and Justice Catholic Worker House (Bremerton, WA) Records, 1980-1982 |
| Series W-30 | Clare House of Hospitality (Bloomington, IL) Records, 1977- (Restricted; consult an archivist for further information) |
| Series W-31 | Gene Detro Papers, 1978-1985, n.d. |
| Series W-32 | St. Francis Catholic Worker Houses (Washington, DC) Records, 1979- |
| Series W-33 | Tulsa Catholic Worker Community Records, 1981-1988 |
| Series W-34 | San Diego Catholic Worker Records, 1979- |
| Series W-35 | St. Benedict's Catholic Worker House of Hospitality (Washington, DC) Records, 1980-1983 |
| Series W-36 | Romero House of Hospitality (Morgantown, WV) Records, 1981-1986 |
| Series W-37 | Alderson Hospitality House (Alderson, WV) Records, 1976- |
| Series W-38 | Portland (OR) Catholic Worker Community Records, 1977-1986 |
| Series W-38.1 | Johnny Baranski Papers, 1969-1987 |
| Series W-39 | Jean Donovan Catholic Worker House (St. Cloud, MN) Records, 1983-1990 |
| Series W-40 | Dorothy Day House of Hospitality (Moorhead, MN) Records, 1983- |
| Series W-41 | Loaves and Fishes Catholic Worker House (Norfolk, NE) Records, 1983-1984 |
| Series W-42 | Dallas Catholic Workers Records, 1984- |
| Series W-43 | Robert Ellsberg Papers, 1976-1985 |
| Series W-44 | Las Vegas (NV) Catholic Worker Community Records, 1980- |
| Series W-45 | Dorothy Day House Community (Syracuse, NY) Records, 1981-1989 |
| Series W-46 | Dorothy and William Gauchat Papers, 1930-2001 |
| Series W-47 | Unity Kitchen Community (Syracuse, NY) Records, 1965- |
| Series W-48 | Simple Gifts, Inc. (Albany, NY) Records, 1976-1987 |
| Series W-49 | Rev. John J. Hugo Papers, 1924-1993 |
| Series W-50 | St. Jude Catholic Worker House (Champaign/Urbana, IL) Records, 1984- |
| Series W-51 | Viva House (Baltimore, MD) Records, |
| Series W-52 | Geoffrey B. Gneuhs Papers, 1973-1993, n.d. |
| Series W-53 | John Filliger Catholic Worker Farm (Alderson, WV) and Llewellyn Scott and Mary Harris Catholic Worker Houses (Washington, DC) Records, 1982- |
| Series W-53.1 | Michael Kirwan Papers, 1974-1999 |
| Series W-54 | Sts. Francis and Therese Catholic Worker Community (Worcester, MA) Records, 1986- |
| Series W-55 | Mustard Seed Catholic Worker (Worcester, MA) Records |
| Series W-56 | Anathoth Community Farm (Luck, WI) Records |
| Series W-57 | David Buer Papers |
| Series W-58 | St. Elizabeths Catholic Worker (Chicago, IL) Records |
| Series W-58.1 | Barbara Blaine Papers |
| Series W-59 | Charles Quilty Papers |
| Series W-60 | Denver Catholic Worker Records |
| Series W-61 | Houston Catholic Worker Records, 1981- |
| Series W-62 | Austin (TX) Catholic Worker Records |
| Series W-63 | St. Catherine of Siena (Chicago, IL) Catholic Worker Records |
| Series W-64 | Bethany House of Hospitality (Oakland, CA) Records |
| Series W-65 | Dorothy Day Catholic Worker (Washington, DC) Records |
| Series W-66 | Thomas C. Cornell Papers (Restricted; consult an archivist for further information) |
| Series W-67 | Duluth Catholic Worker Records |
| Series W-67.1 | Scott Mathern-Jacobson Papers |
| Series W-68 | Unity Acres (Orwell, NY) Records |
| Series W-69 | Cyril Echele Papers |
| Series W-70 | Saginaw (MI) Catholic Worker Community Records |
| Series W-70.1 | Rosalie G. Riegle Papers |
| Series W-71 | Rochester (NY) Catholic Worker Community Records |
| Series W-72 | Dorothy Day Retreat (Sioux City, IA) Records |
| Series W-73 | Gerald J. Griffin Papers |
| Series W-74 | Brian Kavanagh Papers |
| Series W-75 | Brian Terrell Papers |