Hercules Incorporated (American, 20th Century)

Henry Clive (American, 1883-1960)

Hercules Incorporated (American, 20th Century)

Hercules Incorporated (American, 20th Century)

Hercules Incorporated (American, 20th Century)

Hercules Incorporated (American, 20th Century)

Dow Chemical Company (American, 19th/20th Century)

Dow Chemical Company (American, 19th/20th Century)

Dow Chemical Company (American, 19th/20th Century)

Anonymous

Henriëtte Willebeek le Mair (Dutch, 1889 – 1966)

Frederick Richardson (American, 1862-1937)

Dow Chemical Company (American, 19th/20th Century)

Maxfield Parrish (American, 1870 - 1966)