Formaldehyde Joseph Frederic Walker Snippet view - 1944. Formaldehyde Joseph Frederic Walker Snippet view - 1964. Formaldehyde Joseph Frederic Walker Snippet view - 1953. Glutaraldehyde-based disinfectants. Frederick J F, Corner T R, Gerhardt P. Antimicrobial actions of.

Captain Frederic Walker c.1944 Nickname(s) 'Johnnie' Born ( 1896-06-03)3 June 1896, England Died 9 July 1944 (1944-07-09) (aged 48), England Allegiance United Kingdom Service/ branch Years of service 1909–1944 Rank Commands held (1943–44) (1943–44) (1941–42) (1941–42) (1933–35) (1933) Battles/wars • • Awards & (3) Frederic John Walker,, & (3 June 1896 – 9 July 1944) (his first name is given as Frederick in the and some entries) was a officer noted for his exploits during. Walker was the most successful commander during the and was known more popularly as Johnnie Walker (for the brand of whisky). During 1942, Walker left the 36th Group and became Captain (D) Liverpool, granting him some time to recuperate. He finally returned to a ship command when he became commander of the in 1943, consisting of six.

Walker led from, a newly commissioned sloop. The group was intended to act as reinforcement to convoys under attack, with the capacity to actively hunt and destroy U-boats, rather than be restricted to escorting convoys. Walker had suggested the innovative idea to the Commander-in-Chief Western Approaches Command, Sir. The combination of an active hunting group and a charismatic, determined, and innovative antisubmarine specialist such as Walker proved to be a potent force.

One eccentric aspect of his charismatic nature was the playing of the tune over the ship's when returning to its base. In June 1943 Walker's own ship Starling was responsible for the sinking of two U-boats. The first,, was destroyed on 2 June by depth charges and gunfire, and the other,, on 24 June by depth charges and ramming. Another U-boat, the, was sunk by his group on the same day. One highly successful tactic employed by Walker was the, in which two ships would work together to keep contact with a U–boat while attacking.

A refinement of this was the, in which three or more sloops in line to launch to saturate the area with depth charges in a manner similar to a rolling barrage by in advance of an infantry attack. On 30 July, Walker's group encountered a group of three U-boats on the surface (two were vital replenishment boats known as 'Milk Cows') while in the.

He signalled the ' to his group and fired at them, causing damage that prevented them from diving. Two of the submarines,, a Type XIV, and, a Type IX/C40, were then sunk by Walker's group, and the second Type XIV,, by an Australian flying boat. HMS Kite of Escort 2 conducting a depth charge attack. On 6 November 1943 Walker's group sank and. In early 1944 Walker's group displayed its efficiency against U-boats by sinking six in one patrol. On 31 January 1944 Walker's group gained its first kill of the year when it sank the.

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On 9 February his group sank,, and in one action, then sank on 11 February, and on 19 February. On 20 February 1944, one ship of Walker's group, the, was torpedoed and sank seven days later while being towed home. All of her crewmen were saved. They returned to their base at Liverpool to the thrilled jubilation of the city's inhabitants and the. The was present to greet Walker and his ships.