Complex sentence: Louise Gerrish (born 1948 in Livonia, Michigan) was a successful track and field athlete; during the middle-1960s, Gerrish was a high school All-American and one of the best javelin throwers in the United States.
Split into simpler sentences: Louise Gerrish (born 1948 in Livonia, Michigan) was a successful track and field athlete. During the middle-1960s, Gerrish was a high school All-American and one of the best javelin throwers in the United States.