how did the dupont family make their fortune
Du Pont family Over time the Du Pont company grew into the largest black powder manufacturing firm in the world. The family remained in control of the company up through the 1960s[8] and family trusts still own a substantial amount of the company's stock. This and other companies run by the Du Pont family employed up to 10 percent of Delaware's population at its peak.[9] During the 19th century, the Du Pont family maintained their family wealth by carefully arranged marriages between cousins[10] which, at the time, was the norm for many families.