John Chapman Cresson was my third cousin. Most of what I know is in J. W. Jordan's "Colonial Families of Philadelphia," vol I, p 955-6. Lots of institutions around Philly might have his papers or information: Franklin Institute, Academy of Natural Sciences, American Philosophical Society, Pennsylvania Historical Society, and so on.
Looking through census records for descendents, his son Charles M Cresson, a civil engineer, was in Phila in 1860 & '70 with wife Caroline and children Clara, George and John. They lived next to the Presby Church at 17th and Filbert Streets. In 1900 Carrie G Cresson, 69, widow, was living in Phila with George N Cresson, 44, single, civil engineer.
In 1880 the daughter Clara, 26, appears as the wife of Clark Crossman, 35, with Carrie 8, Charles 6, John C 3, and Edward 6/12. John C Crossman was in 1910 in Montana with a wife and daughter, and Edward was in Penna with wife and son and daughter. Charles M Crossman was in NM in 1910 with a wife, and then in 1910 he was divorced but living with a single woman.
Now, how is it that you are interested in John Chapman Cresson?