Wickersham, aged 28 at his death, was buried at the St. Mihiel American Cemetery in Thiaucourt, France.
October 4, 1918, found him taking part in the Allied drive against the enemy in the Argonne Forest between the Moselle and Forest of Argonne in the vicinity of Blanchmont in Champagne, France, and in the attack against the enemy in the St. Mihiel sector in the vicinity of Thiaucourt, France.