Series eleven contains similar material to series ten, but limited to the North American region. Representatives of the national YCS movements in this area kept in close contact, and held annual meetings, usually in Canada. The Canadian and U.S. YCS federations were by far the most active,but there was contact with Caribbean area YCS groups.
- CYCS 12/17 Folder : North American Regional Meeting 1960-1961
- CYCS 12/18 Folder : North American Region 1960-1961
- CYCS 12/19 Folder : North American Meeting 1961-1962
- CYCS 12/20 Folder : North American Region - Meeting and Preparation 1962
- CYCS 12/21 Folder : North American Region 1962-1963
- CYCS 12/22 Folder : North American Region 1965
- CYCS 12/23 Folder : North American Region 1963
- CYCS 12/24 Folder : North American Region 1963
- CYCS 12/25 Folder : North American Region 1963
- CYCS 12/26 Folder : North American Region 1963-1964
- CYCS 54/02 Folder : North American Regional Meeting Correspondence 1966
- CYCS 54/04 Folder : JOTTINGS - North American Regional Newsletter 1966-1967
- CYCS 54/10 Folder : North American Regional Meetings 1962-1967
- CYCS 55/02 Folder : North American Regional Meeting - Chicago, Illinois, and Windsor, Canada 1964
- CYCS 55/12 Folder : North American Region
- CYCS 55/13 Folder : North American Region Correspondence 1963-1964
- CYCS 55/10 Folder : Proposed Agenda for the North American Regional Session 1964-1965
- CYCS 122/06 Folder : North American Regional Meeting 1960
- CYCS 122/07 Folder : Report and Working Papers - North American Regional Meeting - French Canadian - YCS 1959/11
- CYCS 122/08 Folder : North American Regional Meeting 1959/11
- CYCS XII Series : Other National Groups
Files maintained by YCS on the programs and activities of other national student groups, both religious and secular; including correspondence, information brochures, and publications, and records of YCS participation in some of these groups.
- CYCS 12/27 Folder : Newman Club Federation - Correspondence 1962-1965
- CYCS 12/28 Folder : Young Christian Nurses Bills 1960-1961
- CYCS 12/29 Folder : Old Young Christian Nurses File 1960-1961
- CYCS 12/30 Folder : Nursing Education
- CYCS 12/31 Folder : Nursing Intergration
- CYCS 12/32 Folder : Young Christian Nurses - Programming
- CYCS 12/33 Folder : YCN - Groups and Contacts 1961-1963
- CYCS 12/34 Folder : Nurses Groups 1950-1954
- CYCS 12/35 Folder : Nurses
- CYCS 12/36 Folder : African American Institute 1960-1963
- CYCS 12/37 Folder : CALMentator 1963-1965
- CYCS 12/38 Folder : CADA (Campus Americans for Democratic Action) - ISU (Independent Student Union) 1967
- CYCS 12/39 Folder : Collegiate Council for the United Nations 1963-1964
- CYCS 12/40 Folder : Commission on International Development - Seminar and Newsletter 1963-1964
- CYCS 12/41 Folder : Crossroads and Chicago International Student and Affairs 1961-1966
- CYCS 12/42 Folder : International Student Conference 1964
- CYCS 12/43 Folder : National Student Association - Information and Correspondence 1961-1967
- CYCS 12/44 Folder : National Student Association - National Congress 1965
- CYCS 12/45 Folder : National Student Association - Congress 1966
- CYCS 12/46 Folder : Liberal Study Group - NSA (National Student Association) Congress 1964
- CYCS 12/47 Folder : Catholic Peace Fellowship - Fellowship of Reconciliation 1965-1966
- CYCS 12/48 Folder : Catholic Inter-American Coorperation Program (CICOP) 1967
- CYCS 12/49 Folder : Catholic Inter-American Coorperation Program - Working Papers 1965
- CYCS 12/50 Folder : Civil Rights Coor. Comm. (Leadership Conference on Civil Rights - Cooperating Organizations) 1966
- CYCS 12/51 Folder : Christian Family Movement - Relations and Contacts 1962
- CYCS 12/52 Folder : Cursillo Movement 1964
- CYCS 12/53 Folder : Committee for Miners 1964
- CYCS 12/54 Folder : Rev. Michael Gavin, CSC, Assoc. Prof. Philosophy
- CYCS 12/55 Folder : Extension Lay Volunteers 1964-1966
- CYCS 12/56 Folder : Leadership Conference on Civil Rights 1964-1966
- CYCS 12/57 Folder : Liturgical Conference 1965
- CYCS 12/58 Folder : The Thomas E. Murray Training Center - Dr. Philip R. Harris 1965
- CYCS 12/59 Folder : National Catholic Social Action Conference 1962-1964
- CYCS 12/60 Folder : High School - Young Christian Students 1958-1960
- CYCS 12/61 Folder : Young Christian Workers 1960
- CYCS 12/62 Folder : Young Christian Workers 1958
- CYCS 12/63 Folder : Young Christian Workers 1958-1959
- CYCS 13/01 Folder : National Federation of Catholic College Students (NFCCS) 1963-1967
- CYCS 13/02 Folder : Northern Student Movement 1962-1965
- CYCS 13/03 Folder : Protestant Student Groups 1961
- CYCS 13/04 Folder : Sodality 1959-1965
- CYCS 13/05 Folder : YCS - Sodality 1961
- CYCS 13/06 Folder : Students for a Democratic Society 1964-1966
- CYCS 13/07 Folder : Student Nonviolent Coordinating Committee 1962-1965
- CYCS 13/08 Folder : Student Union for Peace Action 1965
- CYCS 13/09 Folder : Students for a Democratic Society 1960-1965
- CYCS 13/10 Folder : National Catholic Welfare Conference 1950-1965
- CYCS 13/11 Folder : PAVLA - Papal Volunteers for Latin America 1964-1966
- CYCS 13/12 Folder : Turn Toward Peace 1964-1966
- CYCS 13/13 Folder : UNESCO 1962-1964
- CYCS 13/14 Folder : Rural Life - YCF 1945-1962
- CYCS 13/15 Folder : YCM
- CYCS 13/16 Folder : Other Miscellaneous Organizations 1965-1966
- CYCS 13/17 Folder : Organizations 1960-1966
- CYCS 13/18 Folder : United Campus Christian Fellowship (UCCF) 1965-1966
- CYCS 13/19 Folder : United States Youth Council - Commission on Governmental Affairs 1964-1965
- CYCS 13/20 Folder : United States Youth Council 1965-1966
- CYCS 13/21 Folder : United States Youth Council - YCS Participation 1965-1966
- CYCS 13/22 Folder : United States Youth Council - YCS Participation 1964-1965
- CYCS 13/23 Folder : University Christian Movement (UCM) 1964-1966
- CYCS 13/24 Folder : University Christian Movement 1966-1967
- CYCS 13/25 Folder : World University Service 1962-1963
- CYCS 13/26 Folder : YWCA - Young Women's Christian Association 1965
- CYCS 13/27 Folder : Student Organizations - (Miscellaneous) 1961-1965
- CYCS 13/28 Folder : National Conference of Christian Employers and Managers - NCCEM 1966
- CYCS 13/29 Folder : ACCION 1961-1962
- CYCS 13/30 Folder : American Association for United Nations 1962-1965
- CYCS 13/31 Folder : American Friends Service Committee 1960-1966
- CYCS 13/32 Folder : Anti-Defamation League, B'Nai B'Rith - Human Relations 1960-1961
- CYCS 23/01 Folder : World Youth, Jeunesse dans le Monde 1961
- CYCS 23/02 Folder : Liturgy Notes
- CYCS 23/02 Title : The Communion Psalm Part One - Sunday, September 6th
- CYCS 23/02 Title : The Communion Psalm Part Two - Monday, September 7th
- CYCS 23/02 Title : Origin of the Kyrie - Tuesday, September 8th
- CYCS 23/02 Title : The Divine Office - Wednesday, September 9th
- CYCS 23/03 Folder : Higher Education and National Affairs 1960-1961
- CYCS 23/04 Folder : Pax Romana Journal 1960-1961
