jded_101148 on Family Tree Circles

Sons were William George Owen b. 1817, Henry Norris Owen, Frederick Charles Owen, Arthur Walshman Owen, Stanley Fairfax Owen, Herbert Parker Owen, Percy Fitxwilliam Owen. Some had carrers in India, 2-3 went to Australia.

abt. 1872 possibly in Lucknow, Bengal India. His father was Robert Dunbar but don't know from where or where he was when Dennis William was born.
Dennis married Sarah about 1872.
Dennis and Sarah had 2 known children: Mary Josephine b. 28 Feb 1873 in Lahore Punjab India (Pakistan) and Robert Ellesmere Dunbar b. 16 July 1876 in Murree, India ( my grandfather).
Mary Josephine went on to marry Patrick Mackay (father James patrick) in 1890 and Robert Ellesmere Dunbar 1st married Lena Helen Mabel Robertson in 20 August 1902 in Lucknow, India [ having son Denis Fitzsimmons Dunbar, my father, in 1903] and then started a new family with Hesther Caroline Madden in 1911.
Lena Helen Mabel married Lewis Edward Lancaster (a widower in 1913).
What is strange is that Robert Ellesmere and his 2nd family were close and stayed in India until about the 1950s and although he, a longtime journalist and sub-editor in Calcutta, I caanot get a line on the family.
Also strange is that I cannot get information on Denis Fitzsimmons Dunbar, the 1st son , even though he played hockey for the Calcutta Rangers in the 1920s and later wrote a Hockey traning manuel published in Australia in abt 1940 & 1952 with a special edition published in India in 1945. Denis was apparently educated in England from abt. 1911-1920, returned to Calcutta, then was in Australia from 1927 to 1944, in India again 1944-1947, Australia 1947-until he died in Melbourne, Victoria 1966. Whilst in Australia Denis coached the Western Australian University Hockey team 1937-1940 and then later, from 1952, coached Tasmanian Hockey teams. He also reproduced his book (copy held in National library). The latest info suggests that he was Anglo Indian but don't know where that may have occurred.
Can any one help? All the Anglo Indian sites appear too be social only and the newspapers ("Englishman" archives and "the Statesman" in India do not answer queries.