William Whitehead (1829-1870)
1862 William Whitehead, Don Steel Works, Sheffield.
1871 Obituary 
WILLIAM WHITEHEAD, born near Rotherham in 1829, was brought up as a file manufacturer, and carried on that business for some years as a partner in the firm of Messrs. John Martin and Co., steel and file manufacturers, Sheffield.
In 1858 he joined Messrs. Naylor Vickers and Co., Sheffield, and was subsequently admitted a partner in that firm; on its formation into a company in 1867 he was appointed one of the managing directors, and held the office to the time of his death, which took place suddenly on the 20th February 1870.
He became an Associate of the Institution in 1862, and a Member in 1868.