John Wynne was born in Barnsley, Yorkshire, England in 1843 [or 1842 - sources differ]. After studying at Victoria University of Manchester, he was articled to John Charlesworth (1832-1871) of Speakman & Charlesworth in Manchester. He then went to Joseph Stretch Crowther (1820-1893) as an improver and principal assistant from 1867 to 1871. He commenced independent practice in Chester, Cheshire in February 1871 but relocated his practice to Manchester in September 1871. He was elected an Associate of the Royal Institute of British Architects (ARIBA) in 1875 and a Fellow of the Royal Institute of British Architects (FRIBA) in 1878.
His address was given as 43 Princess street, Manchester in 1875; 5 Oscroft Place, Moss Lane East, Moss Side, Manchester in 1881 and 1914; 410. Moss Lane East, Moss Side, Manchester in 1895 and 1914; and “Brown Heath,” Tarvin, near Chester, Cheshire where he died on 15 March 1926
Architectural projects by Wynne included churches, villa residences, offices, shop premises, warehouses, and commercial premises. Notable among the buildings designed by him were a Sunday School (1877) in Pendleton, Lancashire; a public hall (1889) in Tarvin, Cheshire; a Wesleyan chapel in Duddon, near Tarporley
Directory of British Architects 1834-1914. Compiled by Antonia Brodie, et al. Volume 2: L-Z. London; New York: British Architectural Library, Royal Institute of British Architects/Continuum, 2001