Briggs , Wolstenholme and Thornely

In 1906 Arnold Thornley formerly joined Frank Gatley Briggs and Henry Vernon Wolstenholme in partnership as Briggs, Wolstenholme & Thornely. This partnership was dissolved by the death of F. G. Briggs in September 1921 after which he Thornely worked alone but under the style of Briggs and Thornley.

Works by this partnership of Briggs Wolstenholme and Thornley included the head office of the Mersey Docks and Harbour Board; the offices of Elder Dempster & Company, new premises for the Blue Coat School at Wavertree (1906) ); Fairhaven Congregational Church, South Clifton Drive, Lytham St. Anne's, Lancashire (1907-12); King Edward VII Grammar School, Lytham St Annes (1908), as well as a series of private houses—including Thornely's own, The Homestead, Mount Wood, Prenton, Cheshire—and the town hall at Wallasey (1914–19) Police and Sessions Courts, and Public Halls, Blackburn, (1914- 21); the Bank of British West Africa, or West Africa House (completed 1920)