Complex sentence: After George Lewis died in 1914, and his son Tracy Lewis died prematurely at age 47 in 1921, the company went downhill and in 1930 was acquired by the United States Rubber Company in Naugatuck (later renamed Uniroyal).
Split into simpler sentences: After George Lewis died in 1914, and his son Tracy Lewis died prematurely at age 47 in 1921, the company went downhill. In 1930 it was acquired by the United States Rubber Company in Naugatuck (later renamed Uniroyal).