Transcribed from "An Illustrated History of The Big Bend Country, embracing Lincoln, Douglas, Adams and Franklin counties, State of Washington",  published by Western Historical Publishing Co., 1904.

     JACOB ROSENOFF was born in Walcow, Russia, February 25, 1869.  He was the son of Fred and Katherine (Achziger) Rosenoff and a brother of Henry and John F. Rosenoff, whose lives are sketched elsewhere in this volume.  The family remained together and passed through identical experiences and changes until coming to this state, all of which is chronicled in the biography of Henry Rosenoff and which is unnecessary to repeat here.
     Jacob Rosenoff was a lad of eight years when his family came to America.  He has always lived on the frontier and in consequence has been deprived of all but a meagre common school education.  At the age of twenty-four he launched out upon an independent career.  He first took a homestead and engaged in farming and stock raising.  Having very modest means to begin life with, he experienced his share of the hardships and deprivations of life, but having always enjoyed good health and being possessed of an indomitable will to succeed, coupled with never failing ambition, he has accomplished the realization of his desire to own a home and sufficient amount of the goods of this world to keep him in ease the remainder of his life.  Soon after coming to Adams county he and his brother Henry went to work on the ranch of Pete Meyer, in Lincoln county, where they remained five years.  Returning to Adams county he took a homestead fifteen miles southwest of Ritzville, which, after making final proof he sold, and with the proceeds and what he had accumulated meantime, he purchased four hundred acres of land where he now lives, three miles west of Ritzville.  He has his farm well improved and in a high state state of cultivation, with good house, orchard and out-of-door improvements.  He also keeps a large herd of live stock.
     Jacob Rosenoff was married on November 21, 1894, to Lizzie Bets, daughter of Henry and Katherine (Thaut) Bets, natives of Russia.  The parents of Mrs. Rosenoff came to Lincoln county, Nebraska, in 1887, lived there six years, then removed to Franklin county, where they are now living on a farm.  They are parents of six children, Fred, Henry, Lizzie, Mrs. Katie Koch, John and Jacob.
     The marriage of Mr. and Mrs. Rosenoff has been blessed with three children, Martha, Joseph and Theodore.
     Mr. Rosenoff is a Republican in politics, and a member of the Congregational church.