Jacob Helfond, Storekeeper Second Class, Service no.: 2238516, US Navy, USS Houston (CL-81), 16/10/1944
(Note: Last name "Helfand" in several records)
Wife, Mrs. Jeannette Helfand, 1265 Gerard Ave., Bronx, New York, NY
Died of wounds, October 16, 1944, declared dead October 16, 1944 - USS Houston (CL-81) at Battle of Formosa
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USS HOUSTON (CL-81)

Originally named Vicksburg, USS Houston's (CL-81) name was changed on 12 October 1942 in honor of the USS Houston (CA-30), sunk at the Battle of Sunda Strait.

The Battle of Formosa, consisted of Grumman F6F Hellcat fighter sweeps which were intercepted by airborne Japanese aircraft and anti-aircraft fire. Japanese forces retaliated with land-based air attacks against the fleet and Houston claimed four aircraft shot down on 12 October [1944]. The following day USS Canberra was hit by an aerial torpedo and Houston took over her station. On 14 October. Houston and other ships endured another air raid claiming three of the attacking twin-engined torpedo bombers, but a fourth aircraft's torpedo hit her forward engine room flooding all four machinery spaces and causing the loss of propulsive power.

During the night Boston took her in tow for retirement to Ulithi. Houston continued with damage control work including jettisoning 122 tons of topside equipment, throughout the fifteenth and the morning of the sixteenth. By noon of the sixteenth, all second deck compartments were dry and several third deck compartments had been made watertight and she was riding easily in tow, now from the fleet tug, Pawnee.

Late that afternoon, a Japanese airstrike from Formosa, struck Houston directly on her stern with another torpedo, parallel to her No.2 shaft, flooding her hangar and setting fire to the starboard fuel tank for her scout planes. Ten men were blown over the side by the explosion. Of these, six were killed and the others wounded, one man was killed and six more wounded on board by falling debris.
Source: Wikipedia
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Notes kindly provided by contributor 48847326:

https://www.naval-history.net/WW2UScasaaDB-USNbyNameR.htm

Per the National Jewish Welfare Board Card and a NY marriage index

Jacob Helfond was 26 years old, and was married to Jeanette Fislman on Nov. 3, 1943. The Navy Casualty Book refers to him as Jacob Helfand, but the American Battlefield Commission list him as Helfond.

Name Jacob Helfond
Religion No Record
Disposition Buried at Sea by Administrative Decision
Service Branch Navy
Rank Store Keeper 2nd Class
Service Number 2238516

Name Jacob Helfond
Date of Loss 16 Oct 1944
Branch U.S. Navy
Rank SK2
Service Number 2238516
Status Lost at Sea

Name Helfand
Gender Male
Birth Date 7 Dec 1918
Birth Place Bronx, New York City, New York, USA

Navy Casualty Book
Name Jacob Helfand
Residence Place New York, USA
Branch of Service US Navy
Spouse Jeannette Helfand
1265 Gerard Avenue

Jacob Helfand
in the New York, New York, U.S., Marriage License Indexes, 1907-2018
Name Jacob Helfand
Gender Male
Marriage License Date 3 Nov 1943
Marriage License Place Manhattan, New York City, New York, USA
Spouse Jeanette Fislman

HELFAND, Jacob, Storekeeper 2c, USN. Wife, Mrs. Jeannette Helfand, 1265 Gerard Ave., Bronx, New York, NY (na)

HELFOND, Jacob, SK2, 2238516, USS Houston (CL-81), Northern Luzon and Formosa Attack, October 14, 1944, (CasCode131) believe died of wounds, October 16, 1944, dd October 16, 1944 (bp4) + HELFOND, Jacob, SK2c, USN, Houston CL-81, October 14, 1944 (nm) + HELFOND, Jacob, Storekeeper Second Class, 2238516, USN, from New York, Oct-44, Manila American Cemetery (bm)

Jacob Helfond
Service # 2238516
Rank Storekeeper Second Class U.S. Navy