Jeanie married again, to William Gilbert MP on 14 April 1904.

[1] Simpson was educated at Prince Alfred College and the University of Adelaide before being articled to D. Garlick & Son architects.

He was elected a Fellow of the Institute of Architects and on 17 March 1890 joined the S.A. Works and Buildings Department as a draftsman, and was promoted to Deputy Superintendent of Public Buildings in November 1917 and Superintendent in 1920.

[2] Simpson was elected a Fellow of the South Australian Institute of Architects in 1914.

Simpson married Frances Isabella Kell (died 7 November 1946 at vicarage, North Adelaide) on 7 September 1898.