- FondsAdams - Papers of John Couch Adams
- SeriesBox 30-32 - Correspondence and papers of the Adams Memorial Committee
- FileBox 31 - Correspondence, J - S by sender, relating to the Adams Memorial Committee
- Item1/1 - Autograph letter signed to Eliza Adams
- Item1/2 - Autograph letter signed to James Porter
- Item1/3 - Autograph letter signed to James Porter
- Item1/4 - Autograph letter signed to Donald MacAlister
- Item2/1 - Autograph letter signed to James Porter
- Item2/2 - Autograph letter signed to James Porter
- Item2/3 - Autograph letter signed to James Porter
- Item2/4 - Autograph letter signed to James Porter
- Item3/1 - Autograph postcard signed to James Porter
- 48 more...