American Express Co. has tapped John C. Elliott, a veteran credit card  and merchant processing executive, to lead its card acceptance efforts   abroad.   
Mr. Elliott, 52, was most recently an adviser to First Data Corp. He  joined that transaction processing colossus through its acquisition last   year of Card Establishment Services, where Mr. Elliott had been chairman   and chief executive.     
  
Under a contract with First Data that expired Feb. 29, Mr. Elliott  played a role in the post-merger integration of First Financial Management   Corp., which owned Card Establishment Services' biggest rival in payment   services to retail merchants.     
As executive vice president and general manager of American Express'  establishment services division, Mr. Elliott is responsible for increasing   the number of merchants in foreign countries that accept American Express   cards.     
  
Merchant acceptance is American Express' biggest challenge abroad, say  industry observers. 
Mr. Elliott, who is based in London, reports to Thomas O. Ryder,  international president for American Express Travel Related Services Co.   Mr. Ryder was promoted to that job last October after three years running   the merchant acceptance program worldwide.     
Mr. Elliott, who is filling a newly created post, is Mr. Ryder's first  major hire, said Elisabeth Coleman, an American Express spokeswoman. 
  
Neither executive was available to be interviewed for this article.
Mr. Elliott has also worked at Citicorp, where he was a senior vice  president in travelers check operations, and at MasterCard International,   where he was the chief systems officer and a champion of smart cards.   
At First Data, Mr. Elliott had been more consultant than line manager.  Thomas Staudt, who was president and chief operating officer under Mr.   Elliott at Card Establishment Services, said line responsibilities are more   to his liking.     
"I would imagine he took the (American Express) job because he wanted to  get back to having day-to-day responsibility," said Mr. Staudt, who is now   president of MedE America, a health care card processing firm in Uniondale,   N.Y., that was formerly part of CES.