OK, I'll play.

Off the top of my head, just on gut instinct.

#1 -- some kind of pear (??? bark yes, buds not quite right)
#2 -- Cornus florida
#3 -- Amelanchier
#4 -- Red maple (??? not sure again).
#5 -- cotonwood or some other poplar

I'd be happy to get nice, solid D at 60% on this one.

If this this a recurring theme, I'll go get my winter ID book down, because my poor full brain only can hold so much...

Did you have drought out there? I see environmental stress evidence on three twigs.

Dan

Since I have no earthly idea, I'm just going to say PRUNUS.
If I'm right then that will make my day.

denninmi, 2, 3 and 5 are correct. 2 = Cornus florida 'Cherokee Princess,' 3 = Amelanchier x grandiflora 'Autumn Brilliance" and 5 = native cottonwood, Populus deltoides. Good job.
dan, good eye - we had heavy heat and drought this summer, especially evident on the Amelanchier.
gardeninggrandma, good guess, but none of these are a Prunus. However, P. virginiana 'Canada Red' has very similar pointed buds.
I am sure someone will get #1 fairly easily, but #4 is a bit more unusual (at least here in KS).
hortster

Is the first one Liquidambar (Sweetgum)?

esh_ga, you are correct! #4 is more common in your area of the world, too.
hortster

Would #4 be Nyssa? It doesn't look quite like mine, but I suppose there might be some regional differences ....

esh_ga, right again. Nyssa sylvatica is the slowest tree in the yard, but with the best dependable red fall color. As far as differences go, last November slimwhitman posted a picture in the thread "What is this small tree? (This is a hard one!)" that everyone agreed was Nyssa, but the bark looked heavily layered and fissured, almost shagbark hickory-ish and nothing like you would see on most blackgums.
You guys are too fast! Guess I'll have to get the camera out again...LOL.
hortster

I like this game.
You should have given more time for people to reply though.

Yeah, at least let me get my ID book down off the shelf!

Dan

OK, dan. Get your book down. What say in the next couple of days we do some oaks? That should be fun. Heck, I can't figure most of 'em out, but...get ready.
hortster