Crockford is referenced in Dorothy Sayers's 1927 detective novel Unnatural Death (chapter XI) where Lord Peter Wimsey uses "this valuable work of reference" in trying to trace a clergyman who is important for solving the book's mystery.
An enduring publication was Crockford's Clerical Directory, started in 1858, although whether it was really his creation or that of his junior partner, John Crockford, remains an area of debate.
He had a long association with Edward William Cox with whom he founded The Critic, The Field and The Clerical Directory.
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He worked there until, in his forties, he decided to retire and capitalise on his love of gambling by becoming the banker of a baccarat syndicate at Crockford's, the gaming club in London.
The first match, Crockford's v. Culbertson, took place in 1930, after the Buller–Culbertson match.