X0202 3 2004-04-16 0 0000355199 ESSEX CORPORATION KEYW 0001288350 JOHNSON ANTHONY M C/O ESSEX CORP 9150 GUILFORD RD COLUMBIA MD 21046 1 0 0 0 Common Stock, no par value 0 D Nominated to Board of Directors; no securities required to be reported. See Exhibit 24.1 Power of Attorney Kimberly J. DeChello, Attorney in Fact for Anthony M. Johnson 2004-04-26