[1] Kral's 2002 obituary in The New York Times said: "Their voices had similar ranges but were an octave apart, creating unusual harmonies.
Jackie and Roy's stint with Charlie Ventura's band in 1948 and 1949 brought them recognition; Lou Stein's "East of Suez" was an unusual feature for their voices.
Shortly after leaving Ventura in June 1949, the couple married and worked together on a regular basis thereafter.
Jackie and Roy had their own television show in Chicago in the early 1950s, worked in Las Vegas from 1957 to 1960, settled in New York City in 1963, and appeared on some television commercials.
Fairly early in their career, Jackie and Roy were befriended by composer Alec Wilder, who wrote the liner notes for one of their earliest albums, Jackie Cain and Roy Kral (1955).