- FondsSylvester - Papers of James Joseph Sylvester
- SeriesBox 2-7 - Letters
- SubseriesBox 2-3 Folder 2-9 - Letters to JJS
- 20 more...
- Item59 - A.L.s., from James Whitbread Lee Glaisher
- Item60 - A.L.s., in German, from Paul Gordon
- Item61 - A.L.s., from John Griffiths
- Item62 - A.L.s,. from Edward Bruce Hamley
- Item71 - A.L.s., from Joseph Henry, Smithsonian Institute
- 75 more...