Joseph Mordaunt Crook,, generally known as J. Mordaunt Crook, is an English architectural historian and specialist on the Georgian and Victorian periods. He is an authority on the life and work of the Victorian architect William Burges, his biography published in 1981, and reissued in 2013, has been described as "one of the most substantial studies of any Victorian architect".

Axel Herman Haig RE was a Swedish-born artist, illustrator and architect. His paintings, illustrations and etchings, undertaken for himself and on behalf of many of the foremost architects of the Victorian period made him "the Piranesi of the Gothic Revival."