During William John's absence the estate was managed by his brother, Canon George Bankes, who inherited it on his brother's death just a year before his own in 1857. His youngest grandson Walter Ralph inherited the estate in 1869, and later in life married Henrietta, and had a son: Henry John Ralph Bankes. After Walter's death in 1902, his widow undertook the last major developments to the estate, including construction of the church (1907), new entrance lodges (1912–13) and numerous estate cottages. In 1923 control passed to Ralph Bankes, the seven times great-grandson of the original creator. During the Second World War an extensive military encampment was established in the south-east quarter of the park, which was only restored after the National Trust took ownership. Ralph Bankes died in 1981 and the Kingston Lacy estate, including 12 working farms, and Corfe Castle were bequeathed to the National Trust. The gift was formally accepted on 19 August 1982, the largest bequest that it had ever accepted.