Here’s the mother tree. I had some really big grafts growing from it, but cut them back this past winter. Unlike the Gerardi, the grafts to not stay dwarfed.
Here’s a pic of my Northstar- it’s the dead one laying on the ground, with the tree on the left being its replacement (a transplanted Hudson’s Golden Gem on M27). It died last summer, after I grafted a number of sweet and sour cherries to it. I’m more upset about losing the grafts than the tree- I was done with it, as it kept getting brown rot and the fruit wasn’t any better that bush cherries (and probably worse).
Montmorency (from Home Depot in 2013, planted in 2015 after a few years struggling in a pot).