While a small subset of memorabilia were items O'Neill himself chose to comemorate a significant moment in his career, most represent gifts from constituents or colleagues.

Collection is open for research. Selected items are closed due to fragility; a microfilm access copy is available. Audiovisual recordings in this collection have been migrated from source media; digital use copies can only be accessed onsite in the Burns Library Reading Room.

Includes certificates, plaques, and trophies documenting the awards, honors, and appreciation O'Neill received for his legislative, and occassionally charitable, work. Correspondence regarding awards and honors can be found in the Office Files series.

Collection is open for research. Selected items are closed due to fragility; a microfilm access copy is available. Audiovisual recordings in this collection have been migrated from source media; digital use copies can only be accessed onsite in the Burns Library Reading Room.