American war mothers pay tribute to unknown soldier on Mother's Day. Mother's Day in Washington was fittingly observed when the American War Mothers, many of them Gold Star Mothers, journeyed to Arlington National Cemetery where they paid tribute to America's Unknown Soldier. This scene shows Sergeant Frank Witchey, who sounded taps when the Unknown Soldier was buried on November 11, 1921, again sounding taps today after the Mothers had placed wreaths on the tomb