Arlington National Cemetery

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Remembrance: Jaray Simms places flowers at the gravestone of her father, a World War II veteran. The Wreaths Across America volunteer said the annual ceremony next month at Arlington National Cemetery will bring her work full circle. (Catrina Head)

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Jaray Simms will be one of the expected 25,000 volunteers hoping to place a wreath at the gravesite of every service man and woman buried at Arlington National Cemetery marking its 150th year. (Photographs by Catrina Head)

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Members of the American Heritage Girls participated in wreath laying ceremony at the Tomb of the Unknown Soldier on Sunday, June 29 at Arlington National Cemetery. Khalid Naji-Allah/Special to The Washington Times.

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Members of the American Heritage Girls participated in wreath laying ceremony at the Tomb of the Unknown Soldier on Sunday, June 29 at Arlington National Cemetery. Khalid Naji-Allah/Special to The Washington Times.

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Vice President Joe Biden, left, and President Barack Obama wave to members of the Tragedy Assistance Program for Survivors (TAPS), for people who have a family members who died in the military, after Obama spoke during a Memorial Day Observance at Arlington National Cemetery in Arlington, Va., Monday, May 26, 2014. (AP Photo/Jacquelyn Martin)