Known to country fans mainly as the act in which Skeeter Davis originally rose to fame, the Davis Sisters' career would have surely been much more influential and successful if tragedy hadn't derailed them just after their first hit. Although they only had one big single ("I Forgot More Than You'll Ever Know," in 1953), their outstanding close dual harmonies helped link the Appalachian harmonies of the Delmore Brothers with the more modern ones of subsequent acts like the Everlys. They were also among the earliest female country singing stars of the post-World War II era, and occasionally went into a boogie mode that foreshadowed the rockabilly movement by a year or two.
The Davis Sisters were in fact not sisters at all. Betty Jack Davis and Mary Frances Penick met in high school in Kentucky in the late '40s, soon forming a close friendship and musical partnership. Penick changed her name to Skeeter Davis for professional purposes, so that the duo could be billed as a sister combination. By the early '50s they'd performed regularly on radio shows in Cincinnati and Detroit and made their first studio recordings in Detroit. By 1953 they were recording for RCA, backed by Nashville session players such as Chet Atkins. The mournful "I Forgot More Than You'll Ever Know" was a big hit that made them immediate stars; just as interesting, in retrospect, was the flip side, "Rock-a-Bye Boogie," which anticipated the rockabilly revolution with its frenetic rhythms and Les Paul-influenced electric guitar runs.
That first RCA session was to be Betty Jack's last, as the pair were involved in a serious auto accident in August 1953; Betty Jack died instantly, though Skeeter would recover. With the support of the Davis family, Skeeter continued the act with Betty Jack's older sister, Georgie. The reconstituted Davis Sisters continued to record through 1956, performing in the same harmony style that Skeeter had formulated with Betty Jack. These outings were quite respectable mixes of traditional country ballads with slicker, more up-tempo fare, but there were no more hits, and Skeeter couldn't fully re-create the artistic and personal spark she had enjoyed with Betty Jack. While Georgie retired from music, Skeeter would by the 1960s become one of the most successful woman singers in the country-pop field.