From: Dictionary of American Naval Fighting Ships, Vol. I p 158
Brisk means full of life, keenly alive, or alert.
Brisk (PG-59) was launched 15 June 1942 as the Canadian corvette Flax by Kingston Shipbuilding Co., Kingston, Ontario, Canada acquired by the United States Navy 5 December 1942 ; and commissioned as Brisk 6 December 1942, Lieutenant N. B. Denel, USNR, in command.
The ship got underway from Quebec 5 January 1943 and upon arrival at Boston, underwent overhaul and training exercises until 5 March when she steamed to Staten Island, N. Y.
During April 1943--June 1945 Brisk escorted coastwise convoys between New York and Guantanamo Bay, Cuba. She arrived at Norfolk in June 1945 and commenced her pre-[in]activation overhaul. She then sailed to Charleston, S. C.,,where she was placed out of commission in reserve 9 October 1945. Brisk was transferred to the Maritime Commission 18 October 1946.