The Flower-class corvettes were designed as a cheap and simple multi-role warship capable of being built in the multitude of small civilian shipyards not usually accustomed to building to naval standards.

John Lewis, & Sons Ltd, Torry, Aberdeen was such a company that constructed coasters, drifters and cargo vessels.

[1] During the Second World War, John Lewis & Sons built more than thirty vessels, including small warships.

A major action with other groups was between 19 July – 1 August 1941 with Convoy ON 69 defending 26 merchant ships from 8 U-boats and 2 Italian submarines.

[7] On her return Daniella was assigned, with the Arctic corvettes Lotus, Poppy and Starwort, to escort duties in the Mediterranean, initially in support of Operation Torch, the Allied invasion of North Africa between 8–16 November 1942.

In July 1943 the escort group were supporting Operation Husky, the invasion of Sicily, and this continued until the end of October.

Ships from the British, American and other ports gathered here before sailing to Murmansk from September 1942 following the disaster of Convoy PQ 17 in order to confuse German intelligence.