The beverage is a root beer flavored drink that originated in 1873 from John Graf.
Graf continued to brew soft drinks, but his root beer is remembered the most.
His legacy was passed onto his son after his death in 1930, when his daughter, Sylvia Graf, assumed presidency of the company.
Lawrie Graf was known for his creative engineering skills and his education in chemistry at Marquette University, and helped the company achieve a national status.
Grandpa Graf's is currently sold in northern, eastern, and southern Wisconsin (most abundant in Milwaukee).