From Playbill Arts:
Mary Day, Grande Dame of Washington Ballet, Dies at 96
By Vivien Schweitzer
13 Jul 2006
Mary Day, co-founder of the Washington School of Ballet and the grande dame of the Washington ballet scene for six decades, died on July 11 at 96, reports The Washington Post.
Day co-founded the school in 1944, and in 1961 she instituted annual performances of The Nutcracker, which became a holiday favorite with local audiences. Generations of dancers training at the school had the opportunity to dance as party girls and soldiers in Tchaikovsky's popular ballet.