 On 14 December 1925, Mary gave birth to Yvonne Constance Kirk.Based on known affiliations (Yvonne, Powell Gibson, Mary Moten and former schoolmate, Anna Bertha), Kirby's father lived in Baltimore and was a frequent visitor to the Winchester area.By 1936, Kirby was a successful sideman on the New York City jazz scene, and his eleven-year-old daughter, Yvonne (a student at Douglass) heard stories about her successful father from Powell Gibson.