Graber Olive House

The Graber Olive House in Ontario, California, is original site of the longest operating olive packing business in the United States. The family home, in which the product, designated as Graber Olives, was developed, now is designated as historic and the original farm is designated as a historic site. The business was founded in 1894, two years after Clifford C. Graber and his brother, Charles, arrived from Clay City, Indiana.

Acquiring property in Ontario, 19-year-old Clifford Graber began growing citrus on his newly acquired acreage. Delighting in the taste of the locally grown olives cured by neighboring ranchers, however, he planted olive trees and started curing his own. His olives proved so popular that he soon launched a small-scale business. In 1894, two years after planting his olive trees, Graber began selling vat-cured olives.

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