I hope this is helpful to you in your search. There is an African American male, Leonard Baxter, born in 1921 in Colorado, living in Kansas City, Missouri on the 1940 census, with his mother Nettie, and his step-father, John Minor. Leonard's wife, Helen, who was also born in Colorado, is also in the household. Perhaps knowing his mother and wife's name may aid your search and I wish you the best of luck.

(A) Arlene, I was looking at Helen's age of 14. She does not appear to be his Leonard's wife... It looks like she's younger sibling. It further states that she is also a stepchild of the parents John and Nettie.