BRB

Beinecke Rare Book & Manuscript Library, Yale University Library, New Haven, Conn.

BrL

Brotherton Library, University of Leeds

JRL

John Rylands Research Institute and Library, Manchester

LAS

Lancashire Archives, Preston

MAS

Manchester Archives, Manchester

OED

Oxford English Dictionary

TNA

The National Archives, London

WLC

Wellcome Collection

WYAS

West Yorkshire Archive Service, Leeds, Halifax and Wakefield