1. Carpinus or perhaps Betula but looks like Carpinus stem behind. There is also a Hamamelis mixed in
2. Betula, maybe B. populifolia
3. Fraxinus
4. Populus
5. Paulownia tomentosa
6. Pyrus
7. Juniperus communis
8. Vaccinium
9. Elaeagnus

5, 6 and 9 are growing there as weeds.

1. Carpinus virginiana - but might be yellow birch
2. Betula populifolia - Gray birch
3. Probably Fraxinus nigra - black ash
4. Populus tremuloides - Quaking aspen
5. Tilia americana - Basswood - definitely not Paulownia - leaves are alternate and Paulownia will not survive NH winters
6. Agreed Pyrus sp.
agree wit the rest.

Yes: I see the stems and leaf arrangement of Tilia now.

I agree with #1 thru #3
#4 looks like Populus balsamifera (Balsam Poplar) to me.
#5 I agree, Tilia americana
#6 Most likely Pyrus calleryana - Callery Pear, which is known to many erroneously as "Bradford Pear" because that's the oldest, best selling cultivar.
Agree with #7 and #8
#9 Eleagnus umbellata - Autumn Olive

#6 and #9 are aggressive exotic invasives which you should consider trying to eradicate, not transplanting.

Also, I'd say it's tempting to transplant wild growing trees and shrubs and it can be done with care, but more often than not it ends in failure. Many wild established trees and shrubs, even when still young, resent the root disturbance and don't adjust well and end up dying or taking several years to recover. Some species are exceptions though and it doesn't always end that way, but like I said often times it does. Out of the trees and shrubs you listed, I'd think the smaller Blueberries have the best chance at being transplanted and would behave the best in the landscape.

Thanks for the replies, the ID's gave me a much better idea of what I'm dealing with.

Unfortunately, I guess the autumn olive is the only shrub that might be useful for a landscaped bed (well, plus the blueberry, i guess), but after reading up on it I see why it's a bad plant. On the other hand, it's so common in the entire area here (I see thousands, some planted purposely for example on campus, many on roadsides etc), that I feel eradicating one or two plants (vs transplanting one) wouldn't really make much of a difference.

Thanks!

On the other hand, it's so common in the entire area here (I see thousands, some planted purposely for example on campus, many on roadsides etc), that I feel eradicating one or two plants (vs transplanting one) wouldn't really make much of a difference.

Yep, it's hard to convince the average person that he/she can make a difference and that is partly why it keeps being a problem. Too many people are unwilling to say "it stops here".

I would urge you to reconsider your conclusion. And to even educate others about what you've found out.

I Agree with all salicaceae said, and kman04 except #4 really is Quaking aspen (Populus tremuloides) (Not a Balsam Poplar).

Interesting to me that the candles on your white pines are no less extended there in New Hampshire than they are here in Maryland.

Are they more a function of day length than temperature, perhaps?

tree#1 is a blue beech or otherwise an old ironwood

I'd agree with Salicaceae's post above, #1 is Carpinus caroliniana (American Hornbeam), not a beech.

Resin

Common names for Carpinus caroliniana include

American hornbeam
Blue beech
Water beech
Ironwood
Muscle tree