- MHRK : Matthew Harkins: Microfilm
- MHRK 1 Group : Matthew Harkins Diary January 1895 - May 1897 1895-1897
- MHRK 2 Group : Matthew Harkins Diary May 1897 - December 1898 1897-1898
- MHRK 2 Group : Matthew Harkins Diary 1902-1906 1902-1906
- MHRK 3 Group : Matthew Harkins Diary January 1906-December 1910 1906-1910