Papers of the Hardy family, including correspondence of Sir Thomas Duffus Hardy; correspondence of William Hardy; letters to William John Hardy; letters relating to prints, plates and pictures; letters concerning Notes and Queries magazine; letters concerning subscriptions; and other professional letters.

London County Council register of tramway track lengths, recording description and lengths of route, street length, track length and remarks, such as "conversion to trolleybus", "abandoned" and so on, [1912-1952], with enclosures: photocopy of map of tramways in the London County Council area, revised to 1931; and diagrams of track lengths in Leyton and Hammersmith.