Evans Bali Cherry was a selection from Alberta Canada. A Mr. Evans collected root suckers off the original tree. Bill McKently, who started St. Lawrence Nursery in Potsdam, NY specialized in super cold hardy fruit varieties. He got Evans into the US but re-named it ‘Bali’. However, it now seems to be called ‘Evans’ even in most literature in the U.S. No offense to Bill but Mr. Evans gets the honor of having the tree named for himself.
Some articles list the hardiness to zones 3-9. This is only partly true. In Canada they still sell it from root suckers. However to avoid all the root suckers, most in the U.S. grow on a rootstock. These are cold hardy thru zone 4, and the types you will find at Johnson’s Nursery.