 An embryonic line-up consisted of former Iona members Kenny Driscoll and Tony Smith, former Quest bassist Ray Jones, and drummer Jim Mathews.The band took on the Lone Star moniker in early 1975 with bassist Pete Hurley and drummer Dixie Lee replacing Jones and Mathews, respectively, and the addition of Canadian keyboardist Rick Worsnop and guitarist Paul "Tonka" Chapman (a cousin of famed Welsh rocker Dave Edmunds), the latter whose credits included the bands Universe, Skid Row (where he had replaced Gary Moore), Kimla Taz, and most notably, UFO, in a short-lived 1974 dual guitar configuration alongside Michael Schenker.They raised £300 and recorded a five-song demo tape ("The Acorn Sessions") at a studio near Oxford, with four of the five songs appearing in re-recorded form on their first two albums.