Arabian horse
Tankersley founded the Arabian Horse Owners Foundation (AHOF) in 1963 as a charity to fund the needs of the Arabian horse community. At the time of her death in 2013, the foundation had helped create the Arabian section of the International Museum of the Horse at the Kentucky Horse Park in Lexington, Kentucky: the Al-Marah Arabian Horse Galleries. Housed there are the collections of the AHOF and the Arabian Horse Trust. During the 2010 World Equestrian Games, which were held at the Kentucky Horse Park, the foundation sponsored and funded the exhibit "Gift of the Desert: The Art, History and Culture of the Arabian Horse", bringing publicity to the Arabian breed during a major international equestrian competition.