The short-lived Four Jacks -- not to be confused with the Jacks, who recorded for RPM Records, or Four Jacks and a Jill, the '60s act -- recorded a half-dozen recordings in a ten-month period for Ralph Bass' Federal Records in the early '50s, issuing numerous singles on the label. Both featured two female leads: Shirley Haven and Cora Williams. A third single by the group, "My Last Hour" b/w "Monday Morning Blues" (Federal 12082), featured Lil Greenwood and Little Willie Littlefield. Other singles included "The Last of the Good Rockin' Men" (Federal 12087) and "Troubles of My Own" -- which featured Shirley Haven (Federal 12092). The final recording by the group (all in 1952) was "Grandpa Can Boogie Too" with Lil Greenwood on lead.