Complex sentence: Krol was born on February 20,1919, in Hamilton, Ontario and began playing Canadian football in high school at Kennedy Collegiate Institute in Windsor, Ontario in 1932, with which he won several secondary school championships.
Split into simpler sentences: Krol was born on February 20,1919, in Hamilton, Ontario. Krol began playing Canadian football in high school at Kennedy Collegiate Institute in Windsor, Ontario in 1932, with which he won several secondary school championships.