- COGA : James O'Gara: Manuscripts
- COGA 1-2/ Series : James O'Gara: Writing and Speaking 1949-2002
- COGA 1-2/ Subseries : James O'Gara: Publications 1949-2002
- COGA 1/01 Folder : Publications - Commonweal - Chicago's Misery Mile 1949
- COGA 1/02 Folder : Publications - Magazine Digest - Chicago's Misery Mile 1949
- COGA 1/03 Folder : Publications - MSA Thesis 1951
- COGA 1/04 Folder : Publications - Typescript - Labor Day 1953
- COGA 1/05 Folder : Publications - Books - Catholicism in America 1953-1954
- COGA 1/06 Folder : Publications - Jubilee - Young Congressman (Eugene McCarthy) 1953/08
- COGA 1/07 Folder : Galarza Report - Strangers in Our Fields - Ms 1956
- COGA 1/08 Folder : Galarza Report - Strangers in Our Fields - Pamphlet 1956
- COGA 1/09 Folder : Galarza Report on Mexican Workers - Letters 1956
- COGA 1/10 Folder : Galarza Report - Clippings
- COGA 1/11 Folder : Galarza Report - Related Printed Material
- COGA 1/12 Folder : Publications - Sign - The Church and the Farmer 1957/07
- COGA 1/13 Folder : Publications - Sign - Can We Save Our Cities? 1958/08
- COGA 1/14 Folder : Publications - Catholic Mind - Blight on Our Cities 1959/01-02
- COGA 1/15 Folder : Publications - Sign - Foreign Aid Means Human Aid 1959/09
- COGA 1/16 Folder : Publications - The Layman in the Church 1962
- COGA 1/17 Folder : Publications - The Critic - Theology of the Laity 1962/08-09
- COGA 1/18 Folder : Publications - Typescript - What a Liberal Thinks 1963
- COGA 1/19 Folder : Publications - Books - The Storm over The Deputy - The Real Issue 1964
- COGA 1/20 Folder : Publications - ADL Bulletin - Anti-Semitism: A Catholic View 1965/03
- COGA 1/21 Folder : Publications - Books - The Postconciliar Parish 1967
- COGA 1/22 Folder : Publications - The Church and War 1967
- COGA 1/23 Folder : Publications - Typescript - Education: To Whom Does It Belong? 1967
- COGA 1/24 Folder : Publications - Commonweal - O'Gara becomes editor 1967/05
- COGA 1/25 Folder : Publications - Commonweal - The [Vietnam] War - Treadmill to Disaster 1967/0922
- COGA 1/26 Folder : Publications - Typescript - Salt - Dorothy Day (response to Fr. Fehren) 1983/09
- COGA 1/27 Folder : Publications - Commonweal - By Way of Farewell 1984/0323
- COGA 1/28 Folder : Publications - Commonweal - Lenny Bruce Principle 1985/0712
- COGA 1/29 Folder : Publications - Books - A Sense of Place: Saint John's of Collegeville 1987
- COGA 1/30 Folder : Publications - Typescript - What St. John's Means to Me 1987
- COGA 1/31 Folder : U.S. Catholic - Article on War 1992
- COGA 1/32 Folder : Articles - Abortion, Bishops on Health Care 1993-1994
- COGA 1/33 Folder : Publications - Typescript - Catholic Worker - Remembering Tom Sullivan 2000/07
- COGA 1/34 Folder : Publications - Clippings - Are Catholics Selling the Community Short?
- COGA 1/35 Folder : Publications - Clippings - Past Errors
- COGA 1/36 Folder : Publications - Typescript - Book Reviews
- COGA 1/37 Folder : Publications - Typescript - Catholic-Protestant Tensions: a Plea for Moderation
- COGA 1/38 Folder : Publications - Typescript - Catholics and the Race Question: an Interview with Fr. John LaFarge, SJ
- COGA 1/39 Folder : Publications - Typescript - Federal Aid to Private Schools
- COGA 1/40 Folder : Publications - Typescript - Irish Times - A U.S. Visitor to the North
- COGA 1/41 Folder : Publications - Typescript - Labor Songs and Joe Hill
- COGA 1/42 Folder : Publications - Typescript - Senator Joseph McCarthy
- COGA 1/43 Folder : Publications - Typescript - The Bishops Once More
- COGA 1/44 Folder : Publications - Typescript - The Catholic in a Pluralistic Society
- COGA 1/45 Folder : Publications - Typescript - Unions
- COGA 1/46 Folder : Publications - Typescript - What's Wrong with Catholic Youth?
- COGA 1/47 Folder : Publications - Typescript - Fragments
- COGA 1/48 Folder : Long Island Catholic "All Things Considered" Column - Photocopies 1991-1993
- COGA 1/49 Folder : Long Island Catholic "All Things Considered" Column - Mss. 1995-1997
- COGA 1/50 Folder : Long Island Catholic "All Things Considered" Column - Mss. 1996
- COGA 1/51 Folder : Long Island Catholic "All Things Considered" Column - Mss. 1998
- COGA 1/52 Folder : Long Island Catholic "All Things Considered" Column - Mss. 2001-2002
- COGA 1/53 Folder : Long Island Catholic "All Things Considered" Column - Clippings
- COGA 1/54 Folder : Long Island Catholic "All Things Considered" Column - Clippings
- COGA 1/55 Folder : Long Island Catholic "All Things Considered" Column - Clippings
- COGA 1/56 Folder : Long Island Catholic "All Things Considered" Column - Clippings
- COGA 1/57 Folder : Long Island Catholic "All Things Considered" Column - Mss.
- COGA 1/58 Folder : Long Island Catholic "All Things Considered" Column - Photocopies
- COGA 1/59 Folder : Long Island Catholic "All Things Considered" Column - Reactions
- COGA 1/60 Folder : Proposed Book - On Being an American Catholic
- COGA 1/61 Folder : Proposed Book - Democratic Catholic Church
- COGA 2/01 Folder : Proposed Book - Articles
- COGA 2/02 Folder : Proposed Book - Clippings
- COGA 2/03 Folder : Proposed Book
- COGA 4/08 Folder : Proposed Book - Notes
- COGA 4/09 Folder : Proposed Book - Suenens
- COGA 2/ Subseries : James O'Gara: Talks 1961-1987
- COGA 2/04 Folder : Talks - An American Catholic Experience
- COGA 2/05 Folder : Talks - American Catholicism
- COGA 2/06 Folder : Talks - Authority and Freedom for the Catholic in Parish and Community
- COGA 2/07 Folder : Talks - Basic Human Rights - National Council of Catholic Men = NCCM 1961/0506
- COGA 2/08 Folder : Talks - The Catholic as Citizen
- COGA 2/09 Folder : Talks - Catholic Education / Parochial Schools
- COGA 2/10 Folder : Talks - The Catholic in a Pluralistic Society
- COGA 2/11 Folder : Talks - The Catholic Intellectual, the Incarnation and the Temporal Order
- COGA 2/12 Folder : Talks - The Intellectual, the Church, and the World
- COGA 2/13 Folder : Talks - Catholics and Controversy 1962
- COGA 2/14 Folder : Talks - Catholics in Suburbia and Catholic Social Thought - Port Washington
- COGA 2/15 Folder : Talks - Harvard / Radcliffe - Catholic Social Thought
- COGA 2/16 Folder : Talks - The Challenge Vatican II Poses for the Layman
- COGA 2/17 Folder : Talks - Criticism and the Catholic Press
- COGA 2/18 Folder : Talks - Ecumenism
- COGA 2/19 Folder : Talks - The Impact of Religion on the American Character - Philadelphia NCCJ
- COGA 2/20 Folder : Talks - The Layman and the Council (Vatican II) 1962-1964
- COGA 2/21 Folder : Talks - The Layman's Role in the Church
- COGA 2/22 Folder : Talks - Theology of the Laity
- COGA 2/23 Folder : Talks - What a Layman Wants
- COGA 2/24 Folder : Talks - Comment on Dolores Leckey - Virgil Michel Symposium 1987
- COGA 2/25 Folder : Talks - Mater et Magistra
- COGA 2/26 Folder : Talks - Northern Ireland
- COGA 2/27 Folder : Talks - Population and Economic Growth
- COGA 2/28 Folder : Talks - Presidential Candidacy of a Catholic, John F. Kennedy
- COGA 2/29 Folder : Talks - Rebellion in the Church
- COGA 2/30 Folder : Talks - The Relationship between Jews and Catholics
- COGA 2/31 Folder : Talks - Religion and Higher Education in a Democratic Society
- COGA 2/32 Folder : Talks - Religion and Life in Society