Ruth Elizabeth "Bazy" Tankersley (née McCormick, formerly Miller; March 7, 1921 – February 5, 2013) was an American breeder of Arabian horses and a newspaper publisher. She was a daughter of U.S. Senator Joseph Medill McCormick. Her mother was progressive Republican U.S. Representative Ruth Hanna McCormick, making Tankersley a granddaughter of Senator Mark Hanna of Ohio. Although Tankersley was involved with conservative Republican causes as a young woman, including a friendship with Senator Joseph McCarthy, her progressive roots reemerged in later years. By the 21st century, she had become a strong supporter of environmental causes and backed Barack Obama for president in 2008.