Biography: Katherine "Sissy" Young was born in Harlem, New York to the proud parents of Catherine Luna Victoria Campbell and Marcus Mamby on July 5th, 1940. She was the youngest of two children.
Katherine spent much of her youth as a student at Ruth William Dance Studio where she learned discipline, confidence, and developed friendships that would last a lifetime. She would spend her weekends learning different genres of dance, but was most passionate about tap. In addition to dance, Katherine enjoyed spending time with her older brother Enrico Marcus Mamby and enjoyed bowling and attending dances in her spare time.
Katherine attended George Washington High School in Harlem. Upon graduating, she attended Manhattan Community College to obtain an associates degree. During this time she came to meet and wed Allen Leslie and November 1961 the couple bore their only child, Kim.
Shortly after obtaining her degree she was fortunate to secure a position at Time Life Magazine. She overcame many challenges throughout her career that included a racial segregation clause that mandated that she work in the smaller New Jersey office instead of the Manhattan headquarter location with the rest of her peers. Her honorable work ethic, determination, and the lift of the segregation clause allowed her to climb the ranks and earn a title as financial analyst and while working in the prestigious Manhattan office. Katherine retired after 32 years of service.
Katherine touched many live and will be severely missed. She leaves to mourn in her passing; her daughter (Kim Cunningham) ; two grand-daughters (Danielle Renee Leslie and Ashley Victoria Brown); a great grand-son, (Chan S. Daniels), her sister-in-law (Judy Mamby) and two nieces (Crystal Mamby and Melissa Mamby).