- FondsCrook - Papers of John Anthony Crook
- SeriesD - Correspondence
- SubseriesD1 - Files of letters mostly to, with some from JAC, arranged alphabetically by sender/recipient
- File6 - Box 6, Letters S-Z
- 165 more...
- Item169 - TLS from Martin Worthington (Cambridge) to Crook
- Item170 - TLS from Martin Worthington (Cambridge) to Crook
- Item171 - TLS from Martin Worthington (Cambridge) to Crook
- Item172 - TLS from Reinhard Zimmermann (Regensburg) to Crook
- Item173 - ALS from Crook to Reinhard Zimmermann
- Item174 - ALS from Jill Zeidler (Gonville & Cauis, Cambridge) to Crook