- Ruskin, John,--1819-1900--Bookplate.2
- Russell, Richard, 1700?-1771.2
- Turner, J. M. W. (Joseph Mallord William), 1775-1851.2
- Untermeyer, Jean Starr,--1886-1970--Presentation inscription from R. Frost2
- Wright, R. F.--Autograph2
- A.R. Dorrington and Co1
- Addison, Joseph, 1672-17191
- Addison, Joseph, 1672-1719.1
- Alden, R. Percy--Bookplate.1
- Alexander, Henry--Bookplate1
- Allen, T.--Bookplate1
- Allestry, James, d. 1670, printer.1
- Anson, George Anson, Baron, 1697-17621
- Anson, George Anson,--Baron,--1697-17621
- Apthorp, James--Autograph.1
- Archer, Thomas, active 1603-1634, publisher1
- Ardizzone, Edward, 1900-1979, ill.1
- Arnold, William Harris,--1854-1923--Bookplate.1
- Arthur,--King--Drama1
- Atterbury, Francis, 1662-17321