Fort Jackson Federal Credit Union, Columbia, S.C., has promoted Audrey Brown to assistant vice president of marketing and Robin Vaughn to Northeast branch manager. IBM Southeast Employees Federal Credit Union, Boca Raton, has named Alex Yarnall marketing/brand manager. Army Aviation Center Federal Credit Union, Daleville, Ala., has appointed the following members to its board: Donald J. Marnon, chairman; William C. Thomas, vice chairman; Betty Hughes, secretary; and Charlie Mingus, treasurer. In addition, AACFCU has appointed Richard Waldrop, Roger Turnquist, Mickey Davis, and Betty Hughes to its supervisory committee. Fort Campbell Federal Credit Union, Ky., has appointed the following officers to its board: Col.(Ret.) Herbert B. Allen, chairman; Sam A. Salerno, vice-chairman; Fred Newton, treasurer; and James H. Thompson, secretary; John P. Hunt, director; Tom McManamay, director; Bobbie Shreve, director; and Teddy G. Wood, director. Fort Belvoir Federal Credit Union, Va., has appointed the following officers to its board: Richard Freeman, chairman; Pamela Boyer, first vice chair; William Phillips, second vice chair; Elaine Skreptack, secretary; and Leslie Poole, treasurer; Donald Swygert, director; and Curtis Willoughby, director.