She would reprise the Miss Shields role for the 1994 sequel My Summer Story – also appearing in documentaries about A Christmas Story over the years. Tedde Moore, best known for her role as Ralphie Parker’s teacher Miss Shields in the 1983 A Christmas Story, has died aged 79. Today's top videos STORY CONTINUES BELOWThe actress died on August 5 in Huntsville, Ontario, according to a statement shared by her family on social media. Moore was diagnosed with multiple sclerosis in 2009, according to The Independent, but a cause of death was not revealed. Born Dorothea Mavor Moore on April 11 1947, in Toronto, Canada, she was part of a showbiz family that included her actor father Mavor Moore and grandmother Dora Mavor Moore, a pioneer in Canadian theatre.