FILE - This May 13, 2014 file photo shows rows of gravestones near the grave site of Army Pvt. William Christman, the first military burial at the cemetery, marking the beginning of commemorations of ... more 
FILE - This May 13, 2014 file photo shows rows of gravestones near the grave site of Army Pvt. William Christman, the first military burial at the cemetery, marking the beginning of commemorations of the 150th anniversary of Arlington National Cemetery in Arlington, Va. Christman, 20, enlisted in the 67th Pennsylvania Infantry and was hospitalized for measles five weeks later, dying on May 11, 1864 and buried at Arlington on May 13. (AP Photo/Charles Dharapak, File) less 
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Associated Press | Photo By Charles Dharapak, File
Mon, May 19, 2014 9:06 AM EDT