The problem is you didn't show the leaves. You should be able to find out what it is from the Garden anyway, botanical gardens are supposed to be telling people what they are displaying. They might have a place on their web site where you can make queries about the collections, or a phone number you can call for information about specific accessions. Looks like this one is prominently situated. What I have seen here with a more or less similar trunk is Cydonia oblonga.

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.

Yes, Sherry, That is it!!! I am amazed by how much activity this plant sees! Mostly small bees and a few of the smaller butterflies. I've tried rooting cuttings in water for our new garden, but no-go. I'll have to use rooting hormone and perlite, maybe... I've been unable to find any seeds, even with all the flower pollinators!!! Thank for your help, Myke

The first one is Ground Ivy, also known by several other names including Creeping Charlie. A non-native weed that is probably all through your lawn, too. The next one appears to be a cherry, perhaps Black Cherry Prunus serotina. The throny shrub is a rose, and probably multiflora rose, which is very common, non-native, and something you should be pulling or else it will quickly become out of control. I think the last picture might be Common Fleabane, or perhaps Daisy Fleabane. Both are quite common here, and I think it is the Common Fleabane that pops up all over the place every spring.