Leonard Gotshalk owned Gotshalk Rainbow Ranch, a Black Angus cattle operation in Lakeport, California. He served as a director of the Western States Angus Association under the American Angus Association. The American Angus Association was established in 1883 by 60 members and is now the largest beef breed registry worldwide. It started when Angus cattle were imported from Scotland to the US and crossbred with Texas Longhorn cows, creating a hardier breed suited for American conditions. Today, Angus beef is a popular brand known for its quality as food.