LET THE SHOE DROP

I just finished reading Michael Walker’s fascinating article on the history of credit cards (“Charge!” June 30), and I am profoundly upset that he failed to include the answer to the trivia question he posed in the article, as to whether C. F. Frost (the name on the American Express card in their advertising) really existed?

Kymberleigh Richards

Van Nuys

Walker’s reply: Charles F. Frost is a former executive of the Ogilvy & Mather advertising agency, producer of Amex’s original “Do You Know Me?” series. Frost’s wife, Catherine, has lent her name to cards featured in ads targeted at women. Howard Clark, one of the creators of Amex’s platinum card, has been immortalized in promos as H. L. Clark.