Leonard Milburn has records in the Tyne and Wear Archives and the National Archives. Three of the ones from Tyne and Wear are:
Leonard Milburn, Chartered Accountant, Sunderland
Admin/History The firm was started in the 1920's by Leonard Milburn who continued as a sole practitioner for approximately five years until the admission to partnership of Stanley Cowey. Mr Milburn died in 1940. The firm was styled L Milburn & Co until 1971, when, following a merger with a local firm, it was renamed Milburn, Torgersen & Co. In 1980 it merged with Nicholson, Forsythe & Co. and became Torgerson Nicholson & Co.
Articles of clerkship
Date 14 May 1915
Description Leonard Milburn, son of George James Milburn, of 10 Ettrick Grove, Sunderland, to Richard Southern Burkett of 66 John Street, Sunderland, Chartered Accountant {possibly this is the reason why he was not called up - still under Articles}
Correspondence
Date 3-11 March 1927
Description: Correspondence between Leonard Milburn, Chartered Accountants, Central Buildings, West Sunniside, Sunderland, and Stanley Cowey of Boldon Colliery re terms of employment [including concern that he should not "submit (himself) to cold lunches every day"]
Format 3 papers
