Howard M. Nixon (1970), 'The Memorandum Book of James Coghlan: The Stock of an 18th -Century Printer and Binder' , Journal of the Printing Historical Society, 6, pp. 33-52.

At this period he was certainly building up a Catholic connection as can be seen from two signed bindings by him which probably date from about 1766. Both indicate that this side of his business had made quite good progress, although neither is quite top quality. The example illustrated is among the books given by Lord Rothschild to Trinity College, Cambridge, and is described under no. 344 in his catalogue. It is of red morocco, with a roll-tooled floral border, and is signed on the spine with two small pallets lettered in relief COGHLAN (at the head) and BINDER (at tht: foot). It covers the Ambassador's copy of Sacred Hymns, Anthems and Versicles • •. set to Music in a Manner no less solemn than easy, the work of Charles Barbandt, 'organist to his S.H. the Elector of Bavaria's Chappel' and printed for the author in 1766. At this period London Catholics normally worshipped at one of the Embassy Chapels of Catholic sovereigns.