Lookout (YAGR-2) was laid down on 5 April 1945, under a Maritime Commission (MARCOM) contract, MC hull 3139, as the Liberty Ship Claude Kitchin, by J.A.

[5][4] After shakedown off Newport, Rhode Island, Lookout was assigned to radar picket duty in the 1st Naval District.

From 1956 to 1965, she operated on the Atlantic Ocean perimeter of the radar defense net established around the United States to warn of surprise air attack.

Lookout's periods of 20 to 30 days at sea were alternated with inport replenishment at Davisville, Rhode Island.

[5] By the time she completed her 10th year of service in the spring of 1965, Lookout had distinguished herself in the defense of the Nation.