The family of country legend Johnny Cash has suffered another blow - the singer/songwriter's sister has died. REBA CASH HANCOCK lost her battle with a lengthy illness on Sunday (05MAR06) - just before Reese Witherspoon picked up the Best Actress honour for playing her late sister-in-law JUNE CARTER CASH in biopic Walk the Line. A funeral service for Cash Hancock, who managed the House of Cash museum and studio complex in Tennessee, will be held today (08MAR06).