Hi Simon,
There is an article on Edwin - Civic Record of SA 1936 (with a photo.)
PAST MAYOR EDWIN THOMAS ISLEY.
(Corporation of Thebarton.)
He was born at Sydney, N.S.W., 4th November, 1862, and educated at the Church of England Denominational School, Braidwood, N.S.W. He served in the Council for 18 years and has been 34 years a resident of the district. Positions he held in the Council are Councillor, Alderman, and Mayor, and at present is a Councillor. He is a builder and contractor, and Past Master of the Torrensville Masonic Lodge. Mr. Isley has been connected with all philanthropic institutions during the 34 years he has resided in Thebarton. He has been Chairman of Thebarton Junior Technical School Council since its inception in 1914. Mr. Isley and his wife have been connected with the District Trained Nursing Society for many years. Mrs. Isley in an honorary capacity was a collector for the society for 25 years. Mr. Isley had two sons who served in the Great War and both returned.
Annie and George married in SA before 1937 (marriage cutoff)
COLWELL Leslie Barnes 2 single father John COLWELL =
ISLEY Annie Evelyn 24 single father Edwin Thomas ISLEY 27 Dec 1911 Methodist Church West Adelaide Dist Hin 249/1016 (no births listed in SA to cutoff in 1928)
ISLEY George Leslie single 25 father Edwin Thomas ISLEY =
MORRIS Maude Elfreida single 26 father George MORRIS 13 Nov 1920 St Cuthberts Church Prospect Dist Ade 285/584 (2 births)
The sons were cremated at Centennial Park
http://www.centennialpark.org.au/burial_memorial_search/Georges MI
834
Driver
G L ISLEY
Army
Service Corps
28/4/1968 age 73
Cheers Kris
Photo of Edwin Thomas ISLEY added