Sir Charles, perhaps unexpectedly, left the Brook estate to his youngest son, General Jack Seely, MP, who had formed strong connections and relationships with Brook village and its lifeboat. 

It is said that his proudest moment was the day he became a rowing member of the Brooke lifeboat crew. For a detailed account of his life read Galloper Jack by his grandson, Brough Scott, or any of his books which are mainly autobiographical.

Adventure (1930); Fear and Be Slain (1931); Launch! (1932); For Ever England (1932); My Horse Warrior (1934); The Paths of Happiness (1938)

As well as being a Liberal Member of Parliament from 1900 to 1922, Jack Seely was Secretary of State for War from 1912 to 1914. During this time, Brooke House welcomed a number of politicians, including Winston Churchill and Lloyd George. The Astors and the Prince of Wales, later Edward VIII, were regular visitors - particularly in Cowes Week when Queen Mary frequently visited the Seelys at Brooke House and later Mottistone Manor while King George V was sailing (see A King, a queen, etc.).

In 1917 Jack Seely married widowed Evelyn Nicholson who had one son, John (later Sir John Nicholson, Lord Lieutenant of the Isle of Wight).

In the early 1920s, Jack Seely sold Brooke House to his elder brother, the second Sir Charles Seely (1859-1926) when he moved with his family to Mottistone Manor. In 1926 Charles died unexpectedly just after the transaction and Brooke House was inherited by his son, Hugh. 

Jack Seely’s knowledge of Brook and Mottistone and those that lived there are threaded through the books he wrote to keep his family afloat. His descriptions of local events, people and places have been a rich resource for this local history.

Evelyn, Lady Mottistone, JP, lived at Mottistone Manor until her death in 1976 and touched the lives of many who lived in Brook and Mottistone, especially the children.