Richard R. Hopkins, vice president of J.J. Henry Co., Inc., Moorestown, N.J., recently announced two top-level managerial changes in a move to strengthen the firm's Moorestown division field operations network.

Gerald R. Jones, formerly manager of Henry's Hampton Roads operation in Portsmouth, Va., was named manager of the firm's newly expanded Washington, D.C., operation in Crystal City, Va. He will be replaced at Hampton Roads by T.K. Lawrence.

The J.J. Henry Co., Inc., one of the nation's principal naval architectural and marine engineering firms, is headquartered in the World Trade Center, New York City.