Complex sentence: He was founder of the Pennsylvania Library Club in 1890, and in 1892 established the first branch of the Philadelphia Free Library, and since 1894 was one of its trustees and chairman of the library committee.
Split into simpler sentences: He was founder of the Pennsylvania Library Club in 1890. In 1892 he established the first branch of the Philadelphia Free Library, and in 1894 became one of its trustees and chairman of the library committee.