In the 1890's, what type of cheese did a California man named David Jacks introduce?

David Jack (18 April 1822 – 11 January 1909), also known as David Jacks, was a powerful Californian landowner, developer, and businessman. Born in Scotland, he emigrated to California during the 1849 Gold Rush, and soon acquired several thousand acres in and around Monterey, shaping the history of Monterey County in the first decades of American possession.

David Jack has been credited with the popularization of what is today known as Monterey Jack cheese. A dairy Jack owned along the Salinas River produced a cheese originally known as Queso Blanco, first made by the Franciscan padres at the nearby Mission San Carlos Borromeo de Carmelo. As Jack's dairy went into partnership with other regional dairies, the cheese was mass marketed, which came to be known at first as "Jack's Cheese", and eventually "Monterey Jack".

A devout Presbyterian, Jack donated a great deal of money to religious causes later in life, including support of missionary work, as well as helping to found the Pacific Grove retreat. He was on the board of trustees of the University of the Pacific and helped to keep the school financially afloat in its early years. Jack helped to found what is now the community of Del Monte Forest, also known as Pebble Beach.

In 1907 Jack retired from the landowning business, turning his holdings over to a corporation controlled by his children. He died on January 11, 1909 in Monterey.