Henry Charles Horstmann

Henry Charles Horstmann was an American technical author associated with a long run of practical books on electrical work. Sources available here link him to titles such as Modern Electrical Construction, Electricians' Operating and Testing Manual, Electrical Tables and Engineering Data, and, with Victor H. Tousley, Motion Picture Operation, Stage Electrics and Illusions.

His work appears to have been aimed less at theory than at everyday use. The surviving book descriptions present his manuals as handy references for electricians, repairmen, contractors, architects, engineers, and others who needed quick access to tables, diagrams, and tested methods.

Reliable biographical details about his personal life were hard to confirm from the sources I found, so this overview stays focused on his published work. A confirmed portrait image was not available from the pages I checked.