William McKinley "Mac" Walker, born November 19th, 1897 in Arkadelphia, AR,1 2 was a Negro baseball player with the Butte Colored Giants from about 1917-1922 and from 1933-1936. He was the brother of Ernest Walker and Hobart Walker and the brother-in-law of Girlie Fenter.
Walker, a pitcher, was one of many natives of Arkadelphia, AR to play with the Butte Colored Giants.
Walker died on February 3rd, 1959 in Phoenix, AZ.4 He was buried in Greenwood Memorial Lawn Cemetery in Phoenix.5
"Word has been received in Butte of the death Feb. 3 in Phoenix, Ariz., of Mackinley Walker, a naïve of Arkansas and a resident of Butte for 25 years. While living in Butte he was employed by the Murray Motor Co. and was an outstanding pitcher with the Butte Colored Giants independent baseball team. Surviving relatives include his wife Thelma, and son and daughter, Robert and Patricia; brothers-in-law and sisters, Mr. and Mrs. Gurley Fenter of Butte and Mr. and Mrs. Cal McClemmond of Beirne, Ark.; brothers and sisters-in-law, Mr. and Mrs. Earnest Walker and Mr. and Mrs. Hobart Walker, all of San Francisco; three grandchildren and several nieces and nephews."6