A narrow-leaved form, even has the same shothole problem prevalent among 'Otto Luyken' here.

Well... of course, as soon as I post this I find a list from the Arbor Day order (or at least, I think it was that year's order). No idea which is which (which of the ones that came in this bundle actually survived), but could the third photo be a young Sargeant Crabapple? That's on the list, as is Eastern Redbud, Washington Hawthorn, dogwood (I know it's not that), Goldenraintree and crapemyrtle (I remember wondering why on earth they were shipping crapemyrtles to New England!!) In theory (meaning assuming they sent what they said they were sending), it should be one of those -- and the crabapple seems like the only one it could be? I'd be floored if they were shipping free Bradford pears (which is what someone on Name that Plant thought it was as well) -- aren't they considered more or less invasive plants in a lot of areas these days? So I'm hoping for Sargeant crabapple since I wouldn't mind having one of those for the birds (means the little guy can stay right where he is now, in the bird/butterfly garden).

Yup - Eastern Redbud - Cercis candadensis. Odd name considering its native range does not technically touch Canada. Is that pic from today?

Tree number two looks like an ash of some kind. You can search for trees (and other plants) online at the link below. All the choices would be appropriate for our location in the low desert. Just click on the 'plants' tab and select by common or botanical name and choose the characteristics you want. Good luck. Here is a link that might be useful: Water Wise Plants