Complex sentence: In 1911 Kate Brew Vaughn did her first cooking demonstration at the Tennessee State Fair and after that she went to work for Procter & Gamble in Cincinnati to promote their new product, Crisco.
Split into simpler sentences: In 1911 Kate Brew Vaughn did her first cooking demonstration at the Tennessee State Fair. After that she went to work for Procter & Gamble in Cincinnati to promote their new product, Crisco.