Karl Lambrecht left his native Celle, Germany for the United States as a stowaway on a ship during his teenage years. Never receiving education past sixth grade, he was a self-taught entrepreneur. In the mid-1920s, Lambrecht settled in Chicago and took a job as a machinist at an optics manufacturing company. There, he came up with techniques to …
https://www.optica.org/en-us/history/biographies/bios/karl_lambrecht/
