- UPEL 60/11 Letter : Mrs. George Mack to Dear Sir 1899/0804
- UPEL 60/11 Letter : F.M. Byron / Lake Shore and Michigan Southern Railway Company to AM 1899/0805
- UPEL 60/11 Letter : Sister Loretto Kaylor to AM 1899/0806
- UPEL 60/11 Letter : John Leonard to AM 1899/0807
- UPEL 60/11 Letter : Nellie Murphy to AM 1899/0807
- UPEL 60/11 Letter : V. Kindler to Faculty, NDU 1899/0808
- UPEL 60/11 Letter : William Kegler to AM 1899/0808
- UPEL 60/11 Letter : Lord, Owen and Company to Brother Paul Hermit 1899/0808
- UPEL 60/11 Letter : F.M. Lawler to AM 1899/0809
- UPEL 60/11 Letter : Albert A. Laman to AM 1899/0809
- UPEL 60/11 Letter : Guy Sterling Manatt to AM 1899/0809
- UPEL 60/11 Letter : George F. Krug to AM 1899/0810
- UPEL 60/11 Letter : Charles Kidney to UND 1899/0811
- UPEL 60/11 Letter : W.B. Kerker to President, UND 1899/0816
- UPEL 60/11 Letter : A.G. Kegler to AM 1899/0816
- UPEL 60/12 Letter : Joseph B. Kearney to AM 1899/0817
- UPEL 60/12 Letter : M.P. Kinkead to AM 1899/0817
- UPEL 60/12 Letter : Margaret Linehan to AM 1899/0820
- UPEL 60/12 Letter : Joseph B. Kearney to Dear Father 1899/0821
- UPEL 60/12 Letter : Ed Keating to AM 1899/0821
- UPEL 60/12 Letter : John Keefe to AM 1899/0822
- UPEL 60/12 Letter : M.H. Kilgallen to AM 1899/0822
- UPEL 60/12 Letter : J.C. Kelly to William Hoynes 1899/0823
- UPEL 60/12 Letter : M.F. Kull to AM 1899/0824
- UPEL 60/12 Letter : John Knell to AM 1899/0826
- UPEL 60/12 Letter : R.B. Lopez to AM 1899/0826
- UPEL 60/12 Letter : F. Louis to To whom it may concern; regarding Charles McCracken 1899/0829
- UPEL 60/12 Letter : E.A. Kelly to AM 1899/0830
- UPEL 60/12 Letter : Sylvester Ig. Kolkiewicz to AM 1899/0830
- UPEL 60/12 Letter : Richard Kolck to AM 1899/0831
- UPEL 60/13 Letter : Business Card of Mrs. Michael Kelley 1899/0901
- UPEL 60/13 Letter : M.H. Kilgallen to AM 1899/0901
- UPEL 60/13 Letter : Mrs. C.P. Kahls to AM 1899/0901
- UPEL 60/13 Letter : Ed Keating to AM 1899/0902
- UPEL 60/13 Letter : John Leonard to AM 1899/0902
- UPEL 60/13 Letter : R.W. Leonard to AM 1899/0902
- UPEL 60/13 Letter : Brother Liguori to Am; regarding Fred Langley 1899/0903
- UPEL 60/13 Letter : Edward Leonard to Rev. Father 1899/0904
- UPEL 60/13 Letter : Ellen Tuohy to AM 1899/0904
- UPEL 60/13 Letter : J.F. Condon / Libby, McNeill and Libby to AM 1899/0904
- UPEL 60/13 Letter : James J. Keogh to AM; regarding William Edward Fox 1899/0904
- UPEL 60/13 Letter : Anthony F. Kaul to AM; regarding John Drachbar 1899/0904
- UPEL 60/13 Letter : Lois Kays to AM 1899/0904
- UPEL 60/13 Letter : Francis J. Kilkenny to AM 1899/0904
- UPEL 60/13 Letter : George J. Lans to AM 1899/0904
- UPEL 60/13 Letter : N. Landgraf to AM 1899/0905
- UPEL 60/13 Letter : Anthony F. Kaul to AM; regarding Francis Sekinger 1899/0906
- UPEL 60/13 Letter : Rudolf Leitz [?] / Keuffel and Esser Company to Brother Paul Hermit 1899/0906
- UPEL 60/13 Letter : Robert A. Krost to AM 1899/0906
- UPEL 60/13 Letter : Lois Kays to AM 1899/0906
- UPEL 60/13 Letter : Frank P. Leffingwell to AM 1899/0906
- UPEL 60/13 Letter : Mrs. M. Kelley to Brother Paul Hermit 1899/0907
- UPEL 60/13 Letter : Ed Keating to AM 1899/0907
- UPEL 60/14 Letter : Mrs. C.P. Kahler to AM 1899/0908
- UPEL 60/14 Letter : Mrs. D.B. Kramer to AM; letter from John Bell regarding Frank Kramer attached 1899/0909
- UPEL 60/14 Letter : J.F. Kidder to AM 1899/0909
- UPEL 60/14 Letter : Al Seeber to Very Rev. President 1899/0909
- UPEL 60/14 Letter : Mrs. D.B. Kramer to AM 1899/0911
- UPEL 60/14 Letter : Jesus Lomelin to President, UND 1899/0911
- UPEL 60/14 Letter : R.B. Lopez to Brother Paul Hermit 1899/0911
- UPEL 60/14 Letter : A.M. Seixas to President, NDU; regarding M. and U. Lopez 1899/0911
- UPEL 60/14 Letter : Mrs. Lamprey to AM 1899/0911
- UPEL 60/14 Letter : Timothy Kinney to AM 1899/0911
- UPEL 60/14 Letter : H.M. Langley to AM 1899/0911
- UPEL 60/14 Letter : F.M. Byron / Lake Shore and Michigan Southern Railway Company to AM 1899/0913
- UPEL 60/14 Letter : H.M. Sangley to Brother Paul Hermit 1899/0913
- UPEL 60/14 Letter : A. Lavigne to Very Reverend 1899/0913
- UPEL 60/14 Letter : M. Kelley to AM; regarding Charles Kelley 1899/0918
- UPEL 60/14 Letter : Lyon and Healy to Brother Paul Hermit 1899/0918
- UPEL 60/14 Letter : R.B. Lopez to Brother Paul Hermit 1899/0918
- UPEL 60/14 Letter : M.M. Latham to AM 1899/0919
- UPEL 60/14 Letter : A.A. Laman to AM 1899/0920
- UPEL 60/15 Letter : Peter Maurin to AM 1899/0920
- UPEL 60/15 Letter : A.G. Luken to AM 1899/0921
- UPEL 60/15 Letter : J.A. Kelly to [?] 1899/0925
- UPEL 60/15 Letter : Daniel Kane to Rev. Father 1899/0925
- UPEL 60/15 Letter : Clothilde Pilard Thomas to Brother Daniel; regarding Martinez 1899/0926
- UPEL 60/15 Letter : Helen Lawrence to Brother Paul Hermit 1899/0926
- UPEL 60/15 Letter : John V. Moran to AM 1899/0927
- UPEL 60/15 Letter : A.D. Leach to AM 1899/0927
- UPEL 60/15 Letter : Anton M. Loes to AM 1899/0928
- UPEL 60/15 Letter : Mrs. C.P. Kahler to AM 1899/0929
- UPEL 60/15 Letter : C.A. Kimball / First National Bank to Brother Paul Hermit; regarding Leisander 1899/0929
- UPEL 60/15 Letter : J.M. Bartleson to AM; regarding John Lavelle; note attached 1899/0929
- UPEL 60/15 Letter : Ed Keating to AM 1899/0930
- UPEL 60/15 Letter : M.H. Kilgallen to AM 1899/0930
- UPEL 60/15 Letter : John V. Moran to AM 1899/0930
- UPEL 60/16 Letter : A.D. Leach to AM 1899/1002
- UPEL 60/16 Letter : F.M. Byron / Lake Shore and Michigan Southern Railway Company to AM 1899/1002
- UPEL 60/16 Letter : [Timothy] Papa Kinney to My Dear Joe 1899/1003
- UPEL 60/16 Letter : Pa + Mother [Morgan] to Dear Son 1899/1003
- UPEL 60/16 Letter : N.E. Mills to AM 1899/1003
- UPEL 60/16 Letter : Arthur J. Mitchel to AM; letter from Donald Mitchel to his brother 1899/1006
- UPEL 60/16 Letter : Papa [Mitchel to My dear Child [Donald] 1899/1006
- UPEL 60/16 Letter : J.E. Mooney to AM 1899/1006
- UPEL 60/16 Letter : Marion Kidwell to Dearest Son [Franklin] 1899/1007
- UPEL 60/16 Letter : John V. Moran to AM 1899/1007
- UPEL 60/16 Letter : Joseph A. Kernan to AM 1899/1009
- UPEL 60/16 Letter : Mrs. F. Miller to AM 1899/1009
- UPEL 60/16 Letter : Mrs. J.W. Merriam to AM; another letter from Mrs. J.W. Merriam to Dear Sir 1899/1011