Clara E. Sipprell (1885-1975)

Spencer Kellogg's grandfather, Supplina Kellogg (1789-1845), began milling linseed oil in 1824 in the Mohawk Valley near Amsterdam, New York. His grandson, Spencer Kellogg (1851-1922), after his marriage to Jane Morris in 1875, was engaged briefly in banking in Des Moines, Iowa. In 1879, at the age of 28, he moved to Buffalo where he built his first linseed oil mill. By 1894, he constructed a second mill, giving him a total of 36 presses, making his company the largest linseed oil plant in the U.S. Incorporated in 1912, Spencer Kellogg & Sons, Inc. maintained its headquarters in Buffalo. Flaxseed from which this oil is made could easily be brought from the Midwest and North Central States via the Lakes to Buffalo for processing and distribution to eastern markets. In 1940, the company operated four flaxseed crushing plants, four soybean crushing plants, one copra crushing plant in Manila, one castor bean crushing plant and one tung oil rectifying and refining plant in Hankow, China. 

Kellogg also became a grain elevator operator, a manufacturer of brooms and brushes, paints and varnishes, white lead, iron and steel, and vegetable oils. Kellogg & Sons became the largest of its kind in the world, with plants and offices throughout the United States and Europe. (Resource: https://buffaloah.com/h/KellSpen/index.html)