This is one of those cases where there are two hostas with the same name. One is registered and, therefore, the "official" version of H. 'Aunt Bea' while the other is a non-registered plant and needs to be renamed to avoid further confusion.

Aunt Bea was a character in the Andy Griffith Show on TV from the late 1950s into the 60s.

This hybrid of H. 'Beatrice' × H. 'Happiness' which was registered by Rod Kuenster of Iowa in 2007. The small size plant grows to 8 inches in height and has heavily streaked foliage which is green, chartreuse and white. It bears pale lavender flowers in July.

Hosta Helper will call this plant 'Aunt Bea' (Kuenster)
 

This cultivar was listed on the MyHostas Database website.  Historic hosta hybridizer, Cynthia Tompkins of Oregon selected this H. montana-type seedling in the early 1900s. It is a very large size green hosta which is similar to H. 'Pioneer' and H. 'Antioch'.  The plant was named for Cynthia's sister.

Hosta Helper will call this plant 'Aunt Bea' (Tompkins)