Elworthy expanded the farm by aggressively acquiring neighbouring properties in the area inland from Timaru, and by 1872 he was running 46,000 sheep on 82,000 acres (33 000 hectares). Over the period 1864 to 1892, Elworthy expanded his land holdings significantly and by 1892 he and his family were the biggest land holders in all of
South Canterbury. Elworthy took a leading part in social, public and business matters in South Canterbury, serving at one time or another as chairman of the Waimate County Council and the Timaru Agricultural and Pastoral Association, and as founding director of the South Canterbury Refrigerating Company. He was also a member of the South Canterbury Acclimatisation Society and the South Canterbury Athletic Club. Horse-racing, steeplechasing and hunting were other interests. A town house was maintained in
Timaru, and on weekends the family would ride or travel by gig or trap into town in order to attend social functions and, of course, church on Sunday. Edward Elworthy and his wife had a grand total of 11 children, four of whom died in infancy. Of the 7 whom survived, there were three sons and four daughters. Athur was the oldest of the three brothers and he sold land and moved to
Christchurch. In 1900, Arthur married Ella Caroline Julius, the daughter of
Churchill Julius who was the bishop of Christchurch. Churchill Julius was the second Bishop of Christchurch, NZ 1 May 1890 – 1925, Primate & First Archbishop of New Zealand 1902–1925. His biography A Power in the Land: Churchill Julius, 1847–1938, published 1971 was written by Anthony & Gertrude Elworthy. His youngest son, John Churchill Elworthy was a captain in the Royal New Zealand Navy and later a farmer. Herbert was the middle brother. He was also the father of farmer and businessman
Sir Peter Elworthy, former National Politician
Jonathan Elworthy and writer David Elworthy who wrote a book with his wife about his grandfather, his life, and the life of his many descendants, called Edward's Legacy. The farm of Herbert Elworthy is called Craigmore and it remains in the family, now being run by leading New Zealand entrepreneur Forbes Elworthy who is the great-grandson of Edward Elworthy. Another great-grandson of Edward is
Charles Elworthy, a leading
New Zealand economist and
social scientist. Percy was the youngest of Edward's three sons and he was a farmer. He was also the father of
Charles, Lord Elworthy who was a senior officer in the
Royal Air Force both during and after
World War 2. Elworthy was made a life peer as Lord Elworthy, of Timaru in New Zealand and of Elworthy in the County of Somerset, on 9 May 1972 and he was made Constable and Governor of Windsor Castle on 13 April 1971. He also became Lord Lieutenant of Greater London in 1973. He was the nephew of Edward Elworthy. One of the great-great-grandsons of Edward Elworthy is
Simon Maling, whose mother is an Elworthy and who played 11 tests as a lock for the
New Zealand All Blacks in the late 1990s and early 2000s. ==Later life==