John F. McCaffrey has joined Arthur J. Gallagher & Co. as its vice president of market relations. McCaffrey brings over 35 years of experience in the insurance services industry. He began his career in 1963 with the Byrnes- McCaffrey Agency in Detroit, which was subsequently acquired by Frank B. Hall & Co., Inc. McCaffrey held numerous executive positions at Hall, and eventually rose to the position of chief executive officer. McCaffrey has also held key executive positions at both Willis Corroon and Aon Corporation.