Hus­band and wife duo Thomp­son Square are can­cel­ing their upcom­ing per­for­mances ofter Shawna Thompson’s father died Thurs­day night.  The duo’s pub­li­cist said George Michael “Mickey” McIl­wain died in Alabama after “a valiant bat­tle with can­cer.”  Shawna and her fam­ily, includ­ing hus­band Keifer, were by his side when he died.  The duo was sched­uled to play the Coun­try Radio Sem­i­nar “New Faces” show Fri­day night in Nashville.  They’re also an open­ing act on Lady Antebellum’s “Own The Night” tour.  David Nail filled in for the duo over the weekend.