D, 1935-1977

This series contains Welch's professional correspondence generated through her research, teaching, professional associations . Other correspondence is found in Series 2: DePauw Herbarium and Series 7: Festschrift. The Festschrift correspondence contains solicitations and tributes used to compile the Festschift. Welch's personal correspondence including congratualatory letters on the occasion of the Festscrift is found in Series 6: Personal Files.