- FondsAdams - Papers of John Couch Adams
- SeriesBox 30-32 - Correspondence and papers of the Adams Memorial Committee
- FileBox 30 - Correspondence, A - J by sender, and papers relating to the Adams Memorial Committee
- 51 more...
- Item14/1 - Autograph letter signed to James Porter
- Item14/2 - Autograph letter signed to James Porter
- Item14/3 - Autograph letter signed to James Porter
- Item14/4 - Autograph letter signed to James Porter
- Item15/1 - Autograph list sent to James Porter
- Item15/2 - Autograph letter signed to James Porter
- Item15/3 - Autograph letter signed to James Porter
- Item15/4 - Autograph letter signed to James Porter
- Item16/1 - Autograph postcard signed to Charles Taylor
- 29 more...