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.

     MICHAEL R. CASSIDY, who lives about four miles north from Hartline, is one of the best known and wealthiest farmers of Douglas county.  He was one of the pioneers of the county and has labored continuously and assiduously since in the opening and building up of this wealthy section of the state of Washington.  Mr. Cassidy owns five hundred and sixty acres of very fertile land and cultivates annually about three hundred and twenty acres.
     Michael R. Cassidy was born in Ontario, Canada, on February 18, 1858, being the son of Bartholomew and Ellen (Dwyer) Cassidy, natives of Ireland and emigrants to Canada when young.  Our subject was educated in the common schools of his native section and there grew to young manhood and in 1886, went to Michigan, dwelling for a time in Saginaw and being engaged in the lumber business.  After that he removed to Iowa and settled in Floyd county where he was engaged in general work for two years.  In 1888, we find him in Idaho, mining in the Bunkerhill and Sullivan at Wardner.  There he continued until 1891, when he moved to Douglas county and bought the relinquishment of a settler and took the land as a homestead.  This was the nucleus of his present large estate and he dwells on the same spot where he first settled.  Mr. Cassidy has been in partnership with his brother, John, largely since coming here and they have been instrumental in doing much in the stock business as well as in farming.  They have some very fine thoroughbred stallions, one Clyde and one English Shire, which have improved the horses in the county.  They continued in the stock business until recently when they disposed of most of their livestock and turned their attention exclusively to farming.  Besides his brother, who has been a partner, Mr. Cassidy has two other brothers, James and Peter, both dwelling in Canada, and three sisters, Mrs. Lizzie O'Neal, Miss Winfer C., and Mrs. Ellen Foley.
     In Ontario, Canada, on February 18, 1901, Mr. Cassidy married Miss Katherine, daughter of Thomas and Bridget (O'Connell) Walsh, both natives of Ireland.  Mrs. Cassidy was born in Ontario, in 1878, and has two brothers, Michael and John, the former in Alaska, and the latter in Canada, and one sister, Mrs. Jonas FitzGibbons.
     Mr. and Mrs. Cassidy were raised Roman Catholics and are now supporters of the faith.