Complex sentence: This resulted in confusion with the nearby Mimico post office, resulting in a name change in 1858 by the wife of innkeeper Thomas Montgomery, Elizabeth Smith, to after her birthplace, now a borough of London, England.
Split into simpler sentences: This resulted in confusion with the nearby Mimico post office, and so the name was changed in 1858 by the wife of innkeeper Thomas Montgomery, Elizabeth Smith. Elizabeth chose the name after her birthplace, now a borough of London, England.