The McGuire Sisters were a singing trio in American popular music. The group was composed of sisters Christine (July 30, 1926 - December 28, 2018), Dottie (February 13, 1928 - September 7, 2012), and Phyllis (February 14, 1931 - December 29, 2020) McGuire. Among their most popular songs are "Sincerely" and "Sugartime", both number-one hits. == Early years == The McGuire sisters were born to Asa and Lillie (Fultz) McGuire in Middletown, Ohio, and grew up in Miamisburg near Dayton.... [more on Wikipedia]