Complex sentence: They were married on September 3,1921, in Horton Bay, Michigan and spent their honeymoon at the Hemingway family summer cottage on Walloon Lake; however, the weather was miserable and both Hadley and Hemingway came down with fever, sore throat, and cough.
Split into simpler sentences: They were married on September 3,1921, in Horton Bay, Michigan, and spent their honeymoon at the Hemingway family summer cottage on Walloon Lake. The weather was miserable, and both Hadley and Hemingway came down with fever, sore throat, and cough.