i was told by the seller they are both Hass. i don't know. the tree with the medium size fruit has had it since november when we first looked at the house. the fruit has not gotten any larger. both trees have lots of new leaves. i have fed them. we are in the process of building watering basins around all our fruit trees which are all on a hillside. after the basins i will be putting a few inches of mulch around each tree.
side note about our lemon tree. it is full of small lemons and is putting out a few more flowers weeks after the heavy bloom.
