The following data is extracted from History of the Pacific Northwest, Oregon and Washington, 1889.
FRANK MITCHELL. - This gentleman is a brother of Mr. Matthew Mitchell, mentioned elsewhere. Born in Missouri in 1839, he was one of the ten children who crossed the plains with the parents and made their home in the lovely Looking Glass valley, Douglas county. Removing with his father in 1863 to The Cove, he assisted him in keeping the ferry, and later, the toll-bridge on the Ruckle road. The young man brought a few head of cattle of his own, and by good management soon had a fine herd. In1869 he drove three hundred animals to Nevada, and in 1878, with his brother, drove a band of five hundred to Cheyenne.
In 1879 he made his residence upon his farm at The Cove, Oregon, having a neat cottage and other perquisites. He owns also a hay ranch of three hundred and twenty acres, with a large number of cattle and other stock. In1888 he was married to Miss Malinda Lynch, of Yamhill county. He has an honorable record as member of the Home Guards during the Indian war of 1855-56.
Source: History of the Pacific Northwest, Oregon and Washington, 1889