On December 7, 1941, Fr. Schmitt was serving on board the battleship USS Oklahoma during the Japanese attack on Pearl Harbor, when a hit caused the ship to capsize. A number of sailors, including Fr. Schmitt, were trapped in a compartment with only a small porthole as the means of escape. Fr. Schmitt helped a number of men through this porthole. When it came his time to leave, he declined and helped more men escape.[2] In total, he helped 12 men escape.[4]
Fr. Schmitt died on board the Oklahoma, and was the first chaplain from USA of any faith to have died in World War II.[5] Most of the bodies were recovered after the ship was righted in 1943. His remains were originally buried in a cemetery in Hawaii as an "Unknown." In 1944, the Navy presented a specially made crucifix to the Archdiocese of Dubuque, in honor of Chaplain Schmitt. It was 24 inches tall and was made from the teakwood deck of the Oklahoma. The corpus of Christ on the crucifix was shaped from the ship's metal.[6] The presentation was made by the chief of chaplains, 8th Naval district.
In 2015, the United States Department of Defense exhumed the remains of what were believed to be 388 military personnel.[4] Schmitt's remains were identified in 2016 from DNA taken from his skull and matched with that of a relative. They were returned to Iowa where a Memorial Mass was celebrated in his home parish of St. Luke in St. Lucas on October 5, 2016.[7] His remains were transferred to Dubuque, where a funeral Mass and burial were held in Christ the King Chapel at Loras College on October 8, 2016.
Bureau of Naval Personnel Information Bulletin No. 308 (November 1942)
The President of the United States of America takes pride in presenting the Silver Star (Posthumously) to Lieutenant, Junior Grade (Chaplain) Aloysius Herman Schmitt (NSN: 0-83472), United States Navy, for heroism involving voluntary risk of life not involving conflict with an armed enemy, while serving as a Chaplain on board the U.S.S. OKLAHOMA, during the attack by Japanese forces at Pearl Harbor, Territory of Hawaii, on 7 December 1941. Chaplain Schmitt was aboard the U.S.S. OKLAHOMA when that vessel capsized and was entrapped in a compartment where only a small porthole provided outlet for escape. With unselfish disregard for his own plight, Chaplain Schmitt assisted his shipmates through the porthole. While his shipmates were in the process of rescuing him his body became wedged in the narrow opening. Realizing that other men had come into the compartment looking for a way out, Chaplain Schmitt insisted that he be pushed back into the ship so that they might escape. Calmly urging them on with a pronouncement of his blessing, he remained behind while they crawled out to safety.
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Christ the King Chapel at Loras College was dedicated in his memory in 1947 and contains some of Fr. Schmitt's personal effects that had been recovered from the Oklahoma — including his chalice and prayer book — and other items that were donated to the school.[7][6] Present at the dedication were Cardinal Samuel Stritch of Chicago and Admiral Chester Nimitz, commander of the Pacific Fleet during World War II.[6]