- MSVY 3 : Division of the Diocese of New Orleans and erection of the Diocese of St. Louis, Pope Leo XII 1826/0718
- MSVY 3 : Brief appointing Bishop Rosati to the Secretariat of St. Louis 1827/2003
- MSVY 3 : Letters of 1827,1829, 1830, 1831 1827-1831
- MSVY 3 : "Mission de Missouri," 4 pp. nd
- MSVY 3 : "The St. Louis Colonization Society to Bishop Rosati" English, typed, H.S. Gesser, Pres. & James L. Murray recording secretary 1832/0601
- MSVY 3 : Bull on the Indians and the Negroes, Gregory XVI 1839/1203
- MSVY 3 : Brief of Gregory XVI electing Bishop Rosati as Domestic Prelate and Assistant to the Pontifical Throne, 6 pp. Latin 1840/1222
- MSVY 3 : Brief - Appointment of Bishop Rosati as Apostolic Delegate to Haiti 1841/0430
- MSVY 3 Subseries : Rosati Memoirs, 3 Volumes nd
Memoirs, long section of negative film in Rosati- handwriting illegible
Typed transcription, "Memoria", Italian, starts with birth and baptism, Jan. 13, 1739 of Joseph Rosati
- MSVY 3 Subseries : Other Rosati Documents 1815-1840
- MSVY 3 : Breviary - instruction for prayers and mass, mixture of Italian and English, New Year's Day Mass, 1819 nd
- MSVY 3 : "Itineraire," mission to Louisiana, 64 pp. 1815-1817
- MSVY 3 : Rese (Federico Reso) Letters to Rosati, 1831-1839
- MSVY 3-4 : Propaganda Letters - Bishop Rosati, Latin and Italian, some dates legible, some letters in duplicate and triplicate 1822-1840
- MSVY 4 : Rosati Diary, typed, marginal notations 1822-1840
