- MLEO 2/010 Recipient : Leopoldine Society Board of Directors 1835/0313
- MLEO 2/011 Document : Mission Report 1835/0809
- MLEO 2/011 Author : Baraga, Frederick (Father-LaPointe, MI) 1835/0809
- MLEO 2/011 Recipient : Leopoldine Society Board of Directors 1835/0809
- MLEO 2/011 Subject : Haetscher, Franz Xavier (Father-Green Bay) 1835/0809
- MLEO 2/011 Subject : Rese, Frederick (Bishop of Detroit) 1835/0809
- MLEO 2/011 Subject : Saenderl, Simon (Father-Arbre Croche) 1835/0809
- MLEO 2/012 Document : Mission Report 1835/0928
- MLEO 2/012 Author : Baraga, Frederick (Father-St.Joseph at LaPointe, MI) 1835/0928
- MLEO 2/012 Recipient : Leopoldine Society Board of Directors 1835/0928
- MLEO 2/012 Subject : Cotte, Pierre (Canadian Pelt Merchant) 1835/0928
- MLEO 2/013 Document : Mission Report 1835/1228
- MLEO 2/013 Author : Baraga, Frederick (Father-St.Joseph at LaPointe, MI) 1835/1228
- MLEO 2/013 Recipient : Leopoldine Society Board of Directors 1835/1228
- MLEO 2/014 Document : Mission Report 1836/0617
- MLEO 2/014 Author : Baraga, Frederick (Father-St.Joseph at Lake Superior) 1836/0617
- MLEO 2/014 Recipient : Leopoldine Society Board of Directors 1836/0617
- MLEO 2/014 Subject : Cotte, Pierre (Canadian Pelt Merchant) 1836/0617
- MLEO 2/015 Document : Mission Report 1836/0811
- MLEO 2/015 Author : Baraga, Frederick (Father-St.Joseph at Lake Superior) 1836/0811
- MLEO 2/015 Recipient : Leopoldine Society Board of Directors 1836/0811
- MLEO 2/016 Author : Neumann, John Nepomucene (Father,CSsR-New York) 1836/0627
- MLEO 2/016 Recipient : Dichtl, Herman (Father-Prague) 1836/0627
- MLEO 2/017 Document : Description of a Missionary of the Leopoldine Society 1836/0627
- MLEO 2/017 Author : Leopoldine Society nd
- MLEO 2/017 Subject : Neumann, John Nepomucene (Father,CSsR) 1836/0627
- MLEO 2/017 Subject : Schaeffer, Leander (Father,OSA) 1836/0627
- MLEO 2/018 Author : Raffeiner, John Stephen (Father-Brixen?) 1833?
- MLEO 2/018 Recipient : unknown]1833` ]1833
- MLEO 2/019 Author : Chancery of Brixen? nd
- MLEO 2/019 Recipient : Leopoldine Society nd
- MLEO 2/020 Document : Estimation of Catholic Germans in N. American Dioceses nd
- MLEO 2/020 Author : Salzbacher, Joseph (Canon-Leopoldine Society) nd
- MLEO 2/021 Author : Weidlich, Georg (Father-Muscoda, WI) 1874?
- MLEO 2/021 Recipient : Leopoldine Society 1874?
- MLEO 2/022 Document : Report on the Diocese of Bardstown 1835-1836?
- MLEO 2/022 Author : Flaget, Benedict Joseph (Bishop of Bardstown, KY) 1835-1836?
- MLEO 2/022 Recipient : Leopoldine Society 1835-1836?
- MLEO 2/023 Author : Macotebenessy, William (Mackinaw, IL) 1829/0601
- MLEO 2/023 Recipient : Gabriel (Father-Arbre Croche, MI) 1829/0601
- MLEO 2/024 Document : List of Baptisms of Indian People in Arbre Croche, MI 1829/0228
- MLEO 2/024 Author : Dejean, Jean Pierre (Father) 1829/0228
- MLEO 2/025 Author : Kenrick, Francis Patrick (Coadjutor of Philadelphia) 1832/0118
- MLEO 2/025 Recipient : Rese, Frederick (Father-Cincinnati) 1832/0118
- MLEO 2/026 Author : Saenderl, Simon (Father,CSsR-Cape d'Istria) 1832/0331
- MLEO 2/026 Recipient : Lichtenberg, Karl Anton (Father-LS Secretary) 1832/0331
- MLEO 2/027 Author : Fenwick, Edward (Bishop of Cincinnati) 1832/0410
- MLEO 2/027 Recipient : Leopoldine Society Board of Directors 1832/0410
- MLEO 2/028 Author : Saenderl, Simon (Father,CSsR-Port of Gibralter) 1832/0514
- MLEO 2/028 Recipient : Passerath, Joseph (Father,CSsR-Superior-Vienna) 1832/0514
- MLEO 2/029 Author : Kenrick, Francis Patrick (Coadjutor of Philadelphia) nd
- MLEO 2/029 Recipient : Leopoldine Society nd
- MLEO 2/030 Author : Saenderl, Simon (Father,CSsR-New York, NY) 1832/0623
- MLEO 2/030 Recipient : Leopoldine Society Board of Directors 1832/0623
- MLEO 2/031 Author : Saenderl, Simon (Father,CSsR-New York, NY) 1832/0623
- MLEO 2/031 Recipient : Lichtenberg, Karl Anton (Father-LS Secretary) 1832/0623
- MLEO 2/031a Document : Newspaper Clipping about Bishop Fenwick nd
- MLEO 2/031a Subject : Baraga, Frederick (Father) nd
- MLEO 2/031a Subject : Fenwick, Edward (Bishop of Cincinnati) nd
- MLEO 2/031a Subject : Mazzuchelli, Samuel (Father,OP) nd
- MLEO 2/032 Author : Flaget, Benedict Joseph (Bishop of Bardstown, KY) 1832/0116
- MLEO 2/032 Recipient : Rese, Frederick (Father-Vicar General of Cincinnati) 1832/0116
- MLEO 2/033 Author : Flaget, Benedict Joseph (Bishop of Bardstown, KY) 1832/0720
- MLEO 2/033 Recipient : Rese, Frederick (Father-Vicar General of Cincinnati) 1832/0720
- MLEO 2/033a Author : Saenderl, Simon (Father,CSsR-Green Bay, WI) 1832/0904
- MLEO 2/033a Recipient : Rese, Frederick (Father-Vicar General of Cincinnati) 1832/0904
- MLEO 2/033b Author : Saenderl, Simon (Father,CSsR-Green Bay, WI) 1832/0906
- MLEO 2/033b Recipient : Lichtenberg, Karl Anton (Father-LS Secretary) 1832/0906
- MLEO 2/034 Author : Saenderl, Simon (Father,CSsR-Green Bay, WI) 1832/0906
- MLEO 2/034 Recipient : Leopoldine Society Board of Directors 1832/0906
- MLEO 2/035 Author : Haetscher, Franz Xavier (Father,CSsR-Detroit) 1832/0917
- MLEO 2/035 Recipient : Lichtenberg, Karl Anton (Father-LS Secretary) 1832/0917
- MLEO 2/036 Author : Haetscher, Franz Xavier (Father,CSsR-Detroit) 1832/0917
- MLEO 2/036 Recipient : Passerath, Joseph (Father,CSsR-Superior-Vienna) 1832/0917
- MLEO 2/037 Author : Jeanjean, Aug. (Father-in Rouen) 1833/0323
- MLEO 2/037 Recipient : Leopoldine Society Board of Directors 1833/0323
- MLEO 2/038 Author : Rese, Frederick (Bishop of Detroit) 1834/0424
- MLEO 2/038 Recipient : Milde, Vincent Eduard (Archbishop of Vienna) 1834/0424
- MLEO 2/039 Author : Rese, Frederick (Bishop of Detroit) 1834/0323
- MLEO 2/039 Recipient : Milde, Vincent Eduard (Archbishop of Vienna) 1834/0323
- MLEO 2/040 Author : Brute, Simon Gabriel (Bishop of Vincennes) 1835/0428
- MLEO 2/040 Recipient : Rese, Frederick (Bishop of Detroit) 1835/0428
- MLEO 2/041 Author : Rese, Frederick (Bishop of Detroit) 1835/0712
- MLEO 2/041 Recipient : Milde, Vincent Eduard (Archbishop of Vienna) 1835/0712
- MLEO 2/042 Author : Baraga, Frederick (Father-Mackinac, MI) 1835/0625
- MLEO 2/042 Recipient : Rese, Frederick (Bishop of Detroit) 1835/0625
- MLEO 2/043 Author : Baraga, Frederick (Father-Mackinac, MI) 1835/0627
- MLEO 2/043 Recipient : Rese, Frederick (Bishop of Detroit) 1835/0627
- MLEO 2/044 Author : Rese, Frederick (Bishop of Detroit) 1834/0506
- MLEO 2/044 Recipient : Milde, Vincent Eduard (Archbishop of Vienna) 1834/0506
- MLEO 2/045 Author : Purcell, John Baptist (Bishop of Cincinnati) 1841/0618
- MLEO 2/045 Recipient : Milde, Vincent Eduard (Archbishop of Vienna) 1841/0618
- MLEO 2/046 Author : Viszoczky, Andreas (Father-Grand River, MI) 1842/0412
- MLEO 2/046 Recipient : Milde, Vincent Eduard (Archbishop of Vienna) 1842/0412
- MLEO 2/047 Author : Profez, Joseph Fred. (CSC-Boa Esperanca, Brazil) 1857/0430
- MLEO 2/047 Recipient : Rauscher, Joseph Othmar (Cardinal Abp of Vienna) 1857/0430
- MLEO 2/048 Author : Vertin, John (Bishop of Sault Ste.Marie and Marquette) 1887/0411
- MLEO 2/048 Recipient : Topolovsek (Father-Vienna) 1887/0411
- MLEO 2/049 Author : Dejean, Jean Pierre (Fr-Arbre Croche, MI) 1829/0929
- MLEO 2/049 Recipient : Fenwick, Edward (Bishop of Cincinnati) 1829/0929