Complex sentence: After visiting nearly 90 laundry operators, they finally traced the mark to Ferguson & Bigg's California Laundry on Bush Street and were able to identify the handkerchief as belonging to Bowles, who lived in a modest boarding house.
Split into simpler sentences: After visiting nearly 90 laundry operators, they finally traced the mark to Ferguson & Bigg's California Laundry on Bush Street. They were able to identify the handkerchief as belonging to Bowles, who lived in a modest boarding house.