- CONA : William James Onahan: Manuscripts
- CONA 1/01 Folder : Correspondence IX-1-a 1862-1888
- CONA 1/02 Folder : Correspondence IX-1-a nd, 1889-1889/08
- CONA 1/03 Folder : Correspondence IX-1-a 1889/09
- CONA 1/04 Folder : Correspondence IX-1-a 1889/10
- CONA 1/05 Folder : Correspondence IX-1-a 1889/11
- CONA 1/06 Folder : Correspondence IX-1-a 1889/12
- CONA 1/07 Folder : Railway Correspondence IX-1-a 1889
- CONA 1/08 Folder : Lists of Participants in 1889 Congress IX-1-b 1889
- CONA 1/09 Folder : Delegates and Their Ticket Numbers IX-1-b 1889
- CONA 1/10 Folder : Speeches and Addresses IX-1-b 1889
- CONA 1/11 Folder : Speeches and Addresses IX-1-b 1889
- CONA 1/12 Folder : Speeches and Addresses IX-1-b 1889
- CONA 1/13 Folder : Miscellaneous Envelope IX-1-b 1889
- CONA 1/14 Folder : Miscellaneous Group IX-1-b 1889
- CONA 2/01 Folder : Correspondence IX-1-c 1890
- CONA 2/02 Folder : Correspondence IX-1-c 1891
- CONA 2/03 Folder : Correspondence IX-1-c 1892/01-06
- CONA 2/04 Folder : Correspondence IX-1-c 1892/07-12
- CONA 2/05 Folder : Correspondence IX-1-d nd, 1893-1893/01
- CONA 2/06 Folder : Correspondence IX-1-d 1893/02
- CONA 2/07 Folder : Correspondence IX-1-d 1893/03
- CONA 2/08 Folder : Correspondence IX-1-d 1893/04
- CONA 2/09 Folder : Correspondence IX-1-d 1893/05
- CONA 2/10 Folder : Correspondence IX-1-e 1893/06
- CONA 3/01 Folder : Chicago Morning Herald IX-2-e 1889/0913
- CONA 3/02 Folder : Chicago Herald IX-2-e 1893/0905
- CONA 3/03 Folder : Chicago Herald IX-2-e 1893/0906
- CONA 3/04 Folder : Chicago Herald IX-2-e 1893/0907
- CONA 3/05 Folder : Chicago Herald IX-2-e 1893/0908
- CONA 3/06 Folder : Chicago Herald IX-2-e 1893/0909
- CONA 3/07 Folder : Chicago Herald IX-2-e 1893/0910
- CONA 3/08 Folder : American Catholic News IX-2-e 1889/1113
- CONA 3/09 Folder : Baltimore American IX-2-e 1889/1113
- CONA 3/10 Folder : New York Daily Tribune IX-2-e 1889/1113
- CONA 3/11 Folder : Baltimore Sun IX-2-e 1889/1113
- CONA 3/12 Folder : Baltimore Sun IX-2-e 1889/1109
- CONA 4/01 Folder : Correspondence IX-1-e 1893/0701-0714
- CONA 4/02 Folder : Correspondence IX-1-e 1893/0715-0731
- CONA 4/03 Folder : Correspondence IX-1-e 1893/0801-0808
- CONA 4/04 Folder : Correspondence IX-1-e 1893/0809-0815
- CONA 4/05 Folder : Correspondence IX-1-f 1893/0816-0820
- CONA 4/06 Folder : Correspondence IX-1-f 1893/0820-0827
- CONA 4/07 Folder : Correspondence IX-1-f 1893/0827-0831
- CONA 4/08 Folder : Correspondence IX-1-f 1893/0901-0905
- CONA 4/09 Folder : Correspondence IX-1-f 1893/0906-0930
- CONA 4/10 Folder : Correspondence IX-1-f 1893/10-1898/06
- CONA 4/11 Folder : Undated Correspondence IX-1-g
- CONA 4/12 Folder : Congress Matters Undated IX-1-g
- CONA 4/13 Folder : Deeds and Mortgages IX-1-g
- CONA 5/01 Folder : Financial Records Group II IX-1-g
- CONA 5/02 Folder : Fragments and Miscellaneous Notes Group III IX-1-g
- CONA 5/03 Folder : Group IV Letters IX-1-g
- CONA 5/04 Folder : Group V Letters IX-1-g
- CONA 5/05 Folder : Group VI Folder Correspondence IX-1-g
- CONA 5/06 Folder : Group VII Folder IX-1-g
- CONA 5/07 Folder : Group VIII Folder IX-1-g
- CONA 5/08 Folder : Group IX Folder IX-1-g
- CONA 5/09 Folder : Columbian Catholic Congress Empty Envelopes IX-1-h
- CONA 5/10 Folder : Invitations to the Columbian Catholic Congress IX-1-h
- CONA 5/11 Folder : Appointment Cards for the Columbian Catholic Congress IX-1-h
- CONA 5/12 Folder : Invitations to the Columbian Catholic Congress IX-1-h
- CONA 5/13 Folder : Miscellaneous Stationary IX-1-h
- CONA 6/01 Folder : Columbian Catholic Congress Delegates IX-1-i
- CONA 6/02 Folder : Columbian Catholic Congress Delegates IX-1-i
- CONA 6/03 Folder : Columbian Catholic Congress Delegates IX-1-i
- CONA 6/04 Folder : Columbian Catholic Congress Delegates IX-1-i
- CONA 6/05 Folder : Columbian Catholic Congress Delegates IX-1-i
- CONA 6/06 Folder : Columbian Catholic Congress Delegates IX-1-i
- CONA 6/07 Folder : Columbian Catholic Congress Delegates IX-1-i
- CONA 6/08 Folder : Columbian Catholic Congress Organization IX-1-j
- CONA 6/09 Folder : Columbian Catholic Congress Organization IX-1-j
- CONA 6/10 Folder : Columbian Catholic Congress Organization IX-1-j
- CONA 7/01 Folder : World's Columbian Exposition and Congresses Official Programs IX-1-k
- CONA 7/02 Folder : World's Columbian Exposition and Congresses Official Programs and Invitations IX-1-k
- CONA 7/03 Folder : World's Columbian Exposition and Congresses Programs IX-1-k
- CONA 7/04 Folder : World's Columbian Exposition and Congresses Miscellaneous IX-1-l
- CONA 7/05 Folder : World's Columbian Exposition and Congresses Catholic Young Men's Union and Arbitration IX-1-l
- CONA 7/06 Folder : World's Columbian Exposition and Congresses Pan-Republic Congress IX-1-l
- CONA 7/07 Folder : World's Columbian Exposition and Congresses Irish Exhibit IX-1-l
- CONA 7/08 Folder : World's Columbian Exposition and Congresses Memorial Baltimore Meeting, 1893 IX-1-l
- CONA 8/01 Folder : Columbian Catholic Congress - Speeches IX-1-m
- CONA 8/02 Folder : Columbian Catholic Congress - Speeches IX-1-m
- CONA 8/03 Folder : Columbian Catholic Congress - Speeches IX-1-m
- CONA 8/04 Folder : Columbian Catholic Congress - Speeches IX-1-n
- CONA 8/05 Folder : Columbian Catholic Congress - Speeches IX-1-n
- CONA 8/06 Folder : Columbian Catholic Congress - Speeches IX-1-n
- CONA 8/07 Folder : Columbian Catholic Congress - Address By Cardinal Gibbons and Resolutions IX-1-o
- CONA 8/08 Folder : Columbian Catholic Congress - Resolutions and Miscellaneous Letters IX-1-o
- CONA 9/01 Folder : Columbian Catholic Congress - Addresses and Clippings IX-1-o
- CONA 9/01A Folder : 4th Congress of Colored Catholics IX-1-o 1893
- CONA 9/02 Folder : Eulogy of John Gilmary Shea and Miscellaneous Address to the Columbian Catholic Congress IX-1-o
- CONA 9/03 Folder : Columbian Catholic Congress - Addresses and Miscellaneous Letters IX-1-o
- CONA 9/04 Folder : Columbian Catholic Congress - Resolutions IX-1-o
- CONA 9/05 Folder : Columbian Catholic Congress - Newspaper Clippings IX-2-a
- CONA 9/06 Folder : Columbian Catholic Congress - Newspaper Clippings IX-2-a
- CONA 9/07 Folder : Columbian Catholic Congress - Newspaper Clippings IX-2-a
- CONA 9/08 Folder : Newspaper Clippings IX-2-b
- CONA 9/09 Folder : Newspaper Clippings IX-2-b