This subseries is divided between alphabetically arranged files and chronologically arranged files based on Porges's original folder titles. The donor, Lucie's daughter, cautions that these labels should be treated as "impressionistic" and were likely created long after the drawings ceased to be active records. The processing archivists were not always able to verify the accuracy of the titles. The date range of 1950-1990 is an approximation, based upon the period in which Porges was affiliated with Pauline Trigère.