Full name at birth was Monteith Douglas Le Compton Cox
Black* lawyer hired by the Glass family to represent Mary Glass in the Mary Glass murder trial. Known as “the leading Colored Attorney of Southeastern Kansas.” Well-versed in Native American laws relative to oil and gas. Legal expertise related to oil and gas sought by “leading white men.” President of Barbados Oil Company and Lucky Tiger Oil & Gas Company of Kansas, “the only Negro Oil and Gas Co. now doing business…within the State of Kansas.” (1919) *Listed as “mulatto” on census records.
1884: Born in Barbados
1902: Arrives in USA at age 18
1907: Becomes naturalized citizen age 23
1911: Passes Supreme Court bar exam at age 27

1911: Marries Nellie Baker, school teacher from Oklahoma, at age 27
1915: Builds brick law office in Topeka
1916: Appointed delegate to the Negro National Educational congress
1919: Appointed member of the Kansas Reception Committee to meet the returning Pioneer Infantry, a “colored organization”
1923: Argues in front of Kansas Supreme Court in The Board of County Commissioners of Montgomery County, Appellee v. (F. M. Benefiel, Arra Ballard, et al., Appellees), C. M. Wilmot, Appellant at age 39
1967: Dies in Los Angeles at age 61, buried in unmarked grave


Sources:
https://books.google.com/books?id=ODYaAAAAYAAJ&pg=PR11&lpg=PR11
https://www.findagrave.com/memorial/204049041/montecth-d.-cox