Photograph of Professor Josephine Mehlberg teaching a mathematics class. Photographer was possibly Dan Ryan. Date of photograph is unknown.... Show morePhotograph of Professor Josephine Mehlberg teaching a mathematics class. Photographer was possibly Dan Ryan. Date of photograph is unknown. Date range listed is approximate. Show less
Photograph of Professor Josephine Mehlberg teaching a mathematics class. Photographer was possibly Dan Ryan. Date of photograph is unknown.... Show morePhotograph of Professor Josephine Mehlberg teaching a mathematics class. Photographer was possibly Dan Ryan. Date of photograph is unknown. Date range listed is approximate. Show less