And for six years, I've answered (at painful, literal length), "We aren't sure."
Because, long story short, we have had one dang thing after another. Most critically, we've never been on hand when the fruits fully ripened without a late frost that nipped the buds, or that plague of tent caterpillars, or the zombie apocalypse, et cetera.
First, aside from the considerable matter of a drought, it was a good year for fruit on the Farm. We had the first ripe apples in late August.
And with fruit in hand, it's possible to start identifying them. Not to mention eating them.
I spent a lot of time sitting with a pile of apples, leafing through my reference book. I'm only sure of a few varieties –– but it's a start.