DUBUQUE LINSEED OIL COMPANY
DUBUQUE LINSEED OIL COMPANY. Dubuque Linseed Oil Company had as its officers Jacob RICH, president and John H. Lull, vice president. The company was established in 1881 and incorporated the same year.
The company's main building was a three-story structure with a frontage of 90 feet on Ninth Street. Within the building was all the machinery for grinding of the seed and its conversion into oil. Daily an estimated 650 bushels of flax seed or nearly 200,000 bushels annually were consumed. The oil was either barreled or stowed away into large tanks of 200,000 gallons capacity. There was a constant workforce of fifteen men.
The products manufactured by the Dubuque Linseed Oil were genuine linseed oil and oil cake. The former was used largely in painting and in a limited extent in medicine and the arts. Oil cake was ground into meal and sold to stock growers for fattening purposes. One pound of of linseed oil cake was equal to three of corn, nine of wheat bran, or ten of hay. By chemical analysis its protein factors were found to be nearly the same as is found in peas or beans, and richer in oil than any species of grain cultivated.
The 1884-1885 through 1890-91 Dubuque City Directory gave the corner of 9th and Jackson as the address.
The Industries of Dubuque: Her Relations as a Trade Center, Dubuque: J. M. Elster and Company, Publishers, 1887, p. 96