Francis R. JACKSON married 1 Jan 1902, in Latah Co., Kendrick, Idaho, to Mary E. (Elva) ALLEN. They had three known children: Lillian, Ray or Roy, and Vernon. By the 1910 Idaho census, Francis was not found, but his wife and three children were living in her parents' household in Kootenai County, Lane Precinct. Her parents were George W. and Mary V. ALLEN. In the 1920 Soundex, his wife, Mary E. (Elva) had remarried to George CLUPHF and were living in Benewah County, Plummer, Idaho. That's also the same county and town stated as place of residence on marriage license for her daughter, Lillie Jackson, in 1920.