K. A. (Kristian A.) Juthe

Kristian A. Juthe, often listed as K. A. Juthe, is credited as the joint author of The Working of Steel: Annealing, Heat Treating, and Hardening of Carbon and Alloy Steel, published by McGraw-Hill in 1921 with Fred H. Colvin. The book was practical in scope, focusing on how steel is made, treated, and tested, and it has remained available through major public-domain and library collections.

Reliable biographical details about Juthe himself are scarce in the sources I could confirm. Based on the book record, he is most safely described as an early 20th-century technical writer or specialist connected with metallurgy and steelworking, remembered today through this collaboration rather than through a large standalone body of published work.

For modern listeners and readers, Juthe's appeal lies in that hands-on, explanatory style. Even now, the book offers a window into how steelworking was taught and understood in its era, making his contribution valuable both as industrial history and as practical technical writing.