SS Antoine Saugrain was a Liberty ship of the United States that served in World War II.

Laid down on 26 July 1943, the ship was launched on 15 August, and delivered on 28 August to Agwilines Inc.[1] She was named after Antoine Saugrain, a French physician and chemist who immigrated to America at the end of the 18th century and led various pioneering works, including on vaccination against smallpox.

Twelve gunners were wounded and merchant seamen took over the machine guns to fight off the attack.

Two days later she was sunk by a torpedo plane while in tow in the Surigao Strait near Leyte Gulf.

The Coast Guard frigate's role of escorting convoys from the staging areas to the invasion sites likewise was crucial.

In late November, the Coronado and San Pedro left Humboldt Bay, New Guinea, to steam the 1,250 miles to escort a convoy of ships bringing supplies and men to Leyte.

One Japanese torpedo plane attacked the SS Antoine Saugrain from the port beam.

The Coronado and San Pedro steamed to the assistance of the freighter and saved all hands.

At 1220, Antoine Saugrain claimed hits on a torpedo plane that was strafing the convoy.

The Marcus Daly, already a veteran of the worst attacks in the Leyte campaign in October, brought down two planes before a third hit her at about 1530 and made a hole “large enough to drive a train through”.

This proud ship made Leyte, and on December 10 assisted in shooting down a plane that managed to crash into her.

Other merchant ships in the convoy gave a good account of themselves both on December 5 and in later attacks at Leyte.

Her Armed Guard officer reported that a torpedo passed the stern of the ship and missed by only 50 feet.

Earlier, she had participated in the Morotai campaign and had assisted in destroying an enemy plane on October 31, 1944.

"On 5 December 1944, the USS Glendale was escorting a convoy from Hollandia, New Guinea, to Leyte when attacking Japanese aircraft sank SS Antoine Saugrain, a cargo ship laden with valuable radar material, and severely damaged SS Marcus Daly.