Short answers, pulled from the story.
The Home Fleet was a Royal Navy fleet that operated in the United Kingdom's territorial waters from 1902, with intervals, until 1967. It was disbanded and re-formed several times under different names before merging with the Mediterranean Fleet in 1967 to form the Western Fleet.
The Home Fleet's origins trace to 1902, when the Royal Navy reorganized its Port Guard ships at the Nore, Portsmouth, Plymouth and Queenstown into a permanent force. On the 1st of October 1902, Vice-Admiral Sir Gerard Noel was appointed Commander-in-Chief, Home Fleet.
The Home Fleet name returned in March 1932 as the new title for the Atlantic Fleet, following the Invergordon Mutiny of 1931. Admiral Sir John Kelly commanded the reborn Home Fleet by 1933.
The Home Fleet lost the battleship Royal Oak, sunk by a German submarine at Scapa Flow, and a battlecruiser lost to a German battleship early in the war. Admiral Blagrove, commander of the 2nd Battle Squadron, died in the Royal Oak sinking.
Admiral Sir Charles Forbes commanded the Home Fleet from April 1938 to December 1940, followed by Admiral Sir John Tovey until May 1943, Admiral Sir Bruce Fraser until June 1944, and Admiral Sir Henry Moore until November 1945. Fraser commanded from HMS Duke of York when the Home Fleet sank the German battleship Scharnhorst while protecting convoy JW55B.
In 1967, the Home Fleet merged with the Mediterranean Fleet and was redesignated the Western Fleet. Admiral Sir John Frewen, Commander-in-Chief since July 1965, held the post until the merger in October 1967.