General view of employees at work in the library at the Dearborn Chemical Company 35th Street laboratory facilities located in Chicago, Illinois. The male employees are identified as C.C. Dennis (left) and A.H. Reynolds…

General view of the office of Laboratory Director Dudley Kimball French (center) at the Dearborn Chemical Company 35th Street laboratory facilities located in Chicago, Illinois. The female employees visible in the…

General view of an office space at the Dearborn Chemical Company 35th Street laboratory facilities located in Chicago, Illinois. A partial view of one of the laboratory spaces is visible through the doorway. The…

Close-up view of employee Olive Bissell seated at her desk in the Dearborn Chemical Company's 35th Street laboratory facility and manufacturing plant. Founded in 1887, the Dearborn Chemical Company was a corporate…

Close-up view of company president Robert F. Carr, Sr. seated in his office at the Dearborn Chemical Company's 35th Street laboratory facility and manufacturing plant. Founded in 1887, the Dearborn Chemical Company was…

General view of company president Robert F. Carr, Sr. seated in his office at the Dearborn Chemical Company's 35th Street laboratory facility and manufacturing plant. Founded in 1887, the Dearborn Chemical Company was a…

Close-up view of company president Robert F. Carr, Sr. seated in his office at the Dearborn Chemical Company's 35th Street laboratory facility and manufacturing plant. Founded in 1887, the Dearborn Chemical Company was…

General view of unidentified female employees at work in the stenographic office space at the Dearborn Chemical Company 35th Street laboratory facilities located in Chicago, Illinois. Founded in 1887, the Dearborn…

General view of employee William A. Converse seated in his office at the Dearborn Chemical Company's 35th Street laboratory facility and manufacturing plant. Founded in 1887, the Dearborn Chemical Company was a…

Album containing 25 photographs depicting early facilities associated with Dearborn Drug and Chemical Works (later Dearborn Chemical Company) in Atlantic City, New Jersey and Chicago, Illinois. Founded in 1887, the…

Close-up view of the assay and combustion furnaces in the laboratory back room at the Dearborn Drug and Chemical Works (later Dearborn Chemical Company) 35th Street laboratory facilities located in Chicago, Illinois.…

Close-up view of two balances used at the Dearborn Drug and Chemical Works (later Dearborn Chemical Company) 35th Street laboratory facilities located in Chicago, Illinois. Founded in 1887, the Dearborn Chemical Company…

Close-up view of the bucking board and crusher used to prepare coal and ore samples for analysis at the Dearborn Drug and Chemical Works (later Dearborn Chemical Company) 35th Street laboratory facilities located in…

General view of the main room at the Dearborn Drug and Chemical Works (later Dearborn Chemical Company) 35th Street laboratory facilities located in Chicago, Illinois, with view of assorted glassware and scientific…

View of a portion of the main room at the Dearborn Drug and Chemical Works (later Dearborn Chemical Company) 35th Street laboratory facilities located in Chicago, Illinois. Per notations accompanying the photograph, the…

General view of employees (left to right) William A. Converse, William H. Edgar, and John Brashear at work in the main room at the Dearborn Drug and Chemical Works (later Dearborn Chemical Company) 35th Street…

General view of a section of the main room at the Dearborn Drug and Chemical Works (later Dearborn Chemical Company) 35th Street laboratory facilities located in Chicago, Illinois, with view of assorted glassware and…

General view of a section of the main room at the Dearborn Drug and Chemical Works (later Dearborn Chemical Company) 35th Street laboratory facilities located in Chicago, Illinois, with view of assorted glassware and…

General view of a section of the main room at the Dearborn Drug and Chemical Works (later Dearborn Chemical Company) 35th Street laboratory facilities located in Chicago, Illinois, with view of assorted glassware and…

General view of a portion of the Dearborn Drug and Chemical Works (later Dearborn Chemical Company) 35th Street laboratory facilities located in Chicago, Illinois, with view of furnaces, assorted balances, and…

Exterior view of a portion of Young's Million Dollar Pier in Atlantic City, New Jersey, with a sign for "Dearborn" visible over a striped awning. Per notations accompanying the photograph, Dearborn Chemical and Drug…

General view of a portion of the Dearborn Drug and Chemical Works hospitality suite located at Young's Million Dollar Pier in Atlantic City, New Jersey. Dearborn maintained a permanent hospitality suite at the pier to…

Exterior nighttime view of a portion of Young's Million Dollar Pier in Atlantic City, New Jersey, with an electrically-lighted sign for "Dearborn" visible over a striped awning. Per notations accompanying the…

General view of the drug storage room at the Dearborn Drug and Chemical Works (later Dearborn Chemical Company) 35th Street laboratory facilities located in Chicago, Illinois. Founded in 1887, the Dearborn Chemical…

General view of the main office space at the Dearborn Drug and Chemical Works (later Dearborn Chemical Company) 35th Street laboratory facilities located in Chicago, Illinois. Per notations accompanying the photograph,…