O'Brien, William S., is a native of Buffalo, and is proprietor of O'Brien's Pharmacy, at the corner of Eagle
and Niagara streets, and the Ellicott Square Pharmacy. The business was established in 1874 by J. W. and W. S.
O'Brien, who continued it until 1877, when William S. became sole proprietor.
Our County and its people
A descriptive work on Erie County, New York
Edited by: Truman C. White
The Boston History Company, Publishes 1898