Signed portrait of Wallace Carothers

Julian W. Hill and Herman Mark

Carothers with Carl Marvel

Some of Carothers' early associates on the nylon project

Charles M.A. Stine

Carothers' family at research lab dedication

Lammott Du Pont with Jane Carothers

Carothers outdoors

Wallace Carothers with neoprene

Signed portrait of Paul J. Flory to Joe Labovsky

Group photo showing Caroline Cooper and Joe Labovsky

Joseph Labovsky in 1939 at the Seaford plant

DuPont officials at the New York World's Fair