MO-St. Louis-Mallinckrodt Chemical Works Fine Prescription Chemicals
{white etched} {T1
-2}        
C1571T3-23
1920 Census: Emil Mallinkrodt age: 59 born about v1861 in Missouri.
Occupation: Chemis Chemical Co.
Wife: Louise Mallinckrodt Age: 47
Son: Charles Mallinckrod Age: 12
Son: Lawrence Mallinckrod Age: 10