General view of an unidentified woman, presumably a laboratory assistant, posed near a work bench with assorted scientific apparatus and glassware visible in the background. While the setting of this photograph is also…

General view of an unidentified woman, presumably a laboratory assistant, posed near a work bench with assorted scientific apparatus and glassware visible in the background. While the setting of this photograph is also…

This photogravure by Gebbie & Husson Co. Ltd. reproduces Thomas Eakins' painting known as The Agnew Clinic (or The Clinic of Dr. Agnew). Eakins was commissioned by the University of Pennsylvania Medical Class of 1889 to…

General view of two unidentified women posed behind a work bench with assorted objects made out of Styrofoam. Both women are wearing Styrofoam fascinators and an audience is visible in the background, indicating the…

Portrait of Dr. Sylvia Stoesser (1901-1991), the first female Ph.D. chemist employed at the Dow Chemical Company.

Sylvia Stoesser (nee Goergen) was born on July 18, 1901 in Buffalo, New York and earned her B.S. in…

General view of an unidentified female employee cutting strands of .50 caliber powder extruded from a press to the proper length at the Radford Ordnance Works in Radford, Virginia. The Radford Ordnance Works was…

Photograph of Dr. Bettye Washington Greene (1935-1995), believed to be the first African-American female chemist employed to work in a professional position at the Dow Chemical Company.

Bettye Greene was born on March…

General view of chemist Delores Horne analyzing the active constituent of a weed killer in the Dow Chemical Company's Analytical Laboratory located in Midland, Michigan. Per a notation accompanying the photograph, Ms.…

General view of an unidentified female employee at work in the Dow Chemical Company's saran film manufacturing facilities in Midland, Michigan. The employee appears to be using a type of press to smooth lengths of saran…

General view of a trade show display for the General Aniline & Film Corporation highlighting products marketed for use in the textile industry. Standing at the center of the display is research chemist Dr. Abraham O.…

General view of technicians (left to right) Lois Nystrom, Rosemary Kirchman, and Helen Lyness using vacuum tube titrators to titrate aluminum in a Dow Chemical Company laboratory. In the titration process, a solution of…

General view of technicians Marguerite Tenhunen (left) and Dorothy Ferris (right) using assorted apparatus in a Dow Chemical Company laboratory to determine the quantity of zinc present in experimental alloys.

General view of Clara Kellerman and another unidentified employee inspecting electric blasting cap shells at the Hercules Powder Company plant in Port Ewen, New York. Formed in 1912 as part of an anti-trust settlement…

General view of female employees inserting bridged wires into loaded electric blasting caps at the Hercules Powder Company plant in Port Ewen, New York. The individuals visible in the photograph are identified as…

General view of an unidentified female employee operating a machine used to inspect blasting cap shells at the Hercules Powder Company plant in Port Ewen, New York. Formed in 1912 as part of an anti-trust settlement…

General view of an unidentified female employee trimming bridge wires used in the electric blasting caps manufactured at the Hercules Powder Company plant in Port Ewen, New York. Formed in 1912 as part of an anti-trust…

General view of employee Emily Port inserting plugs and bridge wires into the shells of electric blasting caps manufactured at the Hercules Powder Company plant in Port Ewen, New York. Formed in 1912 as part of an…

General view of employee Jane Kaminski inserting plugs and bridge wires into the shells of electric blasting caps manufactured at the Hercules Powder Company plant in Port Ewen, New York. Formed in 1912 as part of an…

General view of employee Emily Port inserting plugs and bridge wires into the shells of electric blasting caps manufactured at the Hercules Powder Company plant in Port Ewen, New York. Formed in 1912 as part of an…

General view of employee Emily Port inserting plugs and bridge wires into the shells of electric blasting caps manufactured at the Hercules Powder Company plant in Port Ewen, New York. Formed in 1912 as part of an…

General view of employee Bertha Warren using embroidery scissors to trim platinum wires used in the electric blasting caps manufactured at the Hercules Powder Company plant in Port Ewen, New York. Formed in 1912 as part…

Close-up view of employee Dorothy Locke setting lead wires in a mold, part of the assembly line production of electric blasting caps, at the Hercules Powder Company plant in Port Ewen, New York. During the production of…

General view of employee Mildred Best soldering platinum bridge wires used in the electric blasting caps manufactured at the Hercules Powder Company plant in Port Ewen, New York. During the production of electric…

General view of employee Bertha Warren soldering platinum bridge wires used in the electric blasting caps manufactured at the Hercules Powder Company plant in Port Ewen, New York. During the production of electric…

General view of employee Bertha Warren trimming platinum wires used in the electric blasting caps manufactured at the Hercules Powder Company plant in Port Ewen, New York. Formed in 1912 as part of an anti-trust…