Plaque, Mergenthaler House
This file appears in: Ottmar Mergenthaler at 159 West Lanvale Street
This file appears in: Ottmar Mergenthaler at 159 West Lanvale Street
Ottmar Mergenthaler at 159 West Lanvale Street
Ottmar Mergenthaler was only 18 years old when he immigrated to the United States from Germany in 1872 to work with his cousin August Hahl at his machine shop in Washington, D.C. Four years later, after Hahl moved his shop to Baltimore, inventor…