Memorials may be made to Trisomy 18 Foundation. LEONARD, Ava Ann Marie of O'Fallon, Missouri died Friday, January 25, 2008. She was the cherished daughter of Tonya Marie Myers and Nathan Michael Leonard; dear sister of Joshua Myers and Jonathan Myers; beloved granddaughter of Don and Judy Barzak, Gabby (Jay) Dyer and George Leonard, great-granddaughter of L. Richard and Gevevieve Evilsizor; dear niece of Zachary (Stacy) Barzak and Jennifer DeClue.