found: NUCMC data from Oregon Historical Society (Portland) for George Lawrence Company (Portland, Or.). Records, 1898-1966(Sen. Robert Stanfield)
found: WwW in Am., 1963:v. 2, p. 504 (Stanfield, Robert Nelson; ex-senator; b. Umatilla, Ore., Jul. 9, 1877; s. Robert Nelson and Harriet (Townsend) Stanfield; engaged in livestock and banking bus.; mem. Ore. Ho. of Rep., 3 terms (speaker, 1 term); mem. U.S. Senate, 1921-1927; Republican; d. Apr. 13, 1945)
found: Rivers and harbors, 1923:p. 1 (Robert N. Stanfield)
found: Oregon biographical dictionary, c1999(Stanfield, Robert Nelson; member of Oregon House of Representatives from 1913-1917)
found: Wikipedia, Mar. 23, 2012(Robert N. Stanfield; politician and rancher)
found: Biographical directory of the United States Congress website, viewed October 29, 2018(Stanfield, Robert Nelson, a Senator from Oregon; born in Umatilla, Umatilla County, Oreg., July 9, 1877; attended the public schools and the State normal school at Weston, Oreg.; engaged in the livestock industry and also interested in banking in Echo and Baker, Oreg.; member, State house of representatives 1913-1917, serving as speaker in 1917; elected as a Republican to the United States Senate in 1920 and served from March 4, 1921, to March 3, 1927; unsuccessful candidate for reelection on the Independent ticket in 1926; chairman, Committee to Examine Branches of the Civil Service (Sixty-eighth Congress), Committee on Public Lands and Surveys (Sixty-ninth Congress); resumed his former business pursuits; died in Weiser, Idaho, April 13, 1945: interment in Hillcrest Cemetery)