Hugo Diemer was an American engineer, management consultant, and professor at the Penn State University, who in 1910 published the first industrial engineering textbook: Factory Organization and Admin
Joseph Slater Lewis MICE FRSE was a British engineer, inventor, business manager, and early author on management and accounting, known for his pioneering work on cost accounting.
J. Slater Lewis, late 19th century.
Patent drawing of Slater Lewis' Insulator for Telegraph Wires, 1883
Title page, 1896.
Scheme how to incorporate the labour costs into the factory accounts by Garcke and Fells (1887/89).