William C. (William Clarkson) Van Antwerp

William C. Van Antwerp (William Clarkson Van Antwerp, 1867–1938) is best remembered for The Stock Exchange from Within, a book that draws on his own experience as a member of the New York Stock Exchange. Modern catalog and bookseller records consistently identify him by his full name and link him to that work.

Library and catalog records also show a wider range to his interests than finance alone. He was associated with a notable rare-book collection in San Francisco, and HathiTrust records preserve his essay "A Forgotten Antiquary" in a 1932 Sir Walter Scott centenary volume, suggesting a reader and collector with a lasting interest in literary culture as well as markets.

That mix gives his writing a distinctive flavor: practical when he explains Wall Street, but shaped by the curiosity of a serious book collector. For listeners drawn to firsthand accounts of early twentieth-century finance, his work offers both insider detail and a personal point of view.