Home Surname List Name Index Sources Email Us | Ninth Generation5391. Sydney T. LEONARD was born in 1843 in Rossie, St. Lawrence Co., NY. In the 1870 Census, Sydney was a produce dealer living in Potsdam, NY, with his wife and daughter, Emma. In the 1900 Census, they still had only one child. Conflict in information from Fanny Leonard Koster's charts. Doublecheck. Sydney T. LEONARD and Agnes were married about 1869 in NY. Agnes was born about 1839 in NY. Sydney T. LEONARD and Agnes had the following children: |