Complex sentence: Dunne was forced to leave school in 1907 due to a financial panic, however, and he went to work on the Northern Pacific Railroad as an electrician, based in Vancouver, British Columbia, Canada.
Split into simpler sentences: Dunne was forced to leave school in 1907 due to a financial panic, however. Dunne went to work on the Northern Pacific Railroad as an electrician, making a home in Vancouver, British Columbia, Canada.