Complex sentence: Also in 1845 the Sisters established an employment office to aid job seekers and prospective employers, and also began caring for the mentally ill. and opened a school at Longue-Pointe in Montreal.
Split into simpler sentences: Also in 1845 the Sisters established an employment office to aid job seekers and prospective employers. They also began caring for the mentally ill and opened a school at Longue-Pointe in Montreal.