Complex sentence: Adam's son William J. Lemp was born in Germany in 1836 and after completing his education at St. Louis University, began work at the Western Brewery until he left the company to form a partnership with another brewer.
Split into simpler sentences: Adam's son William J. Lemp was born in Germany in 1836. After completing his education at St. Louis University, he worked at the Western Brewery until he left the company to form a partnership with another brewer.