I agree, photo #2 does look like
Poison Ivy (Toxicodendron radicans)
More images on this page show different leaf photos:
http://www.thepoisonivyguy.com...
This page has illustrations showing comparison of leaves of Eastern Poison Ivy to others:
http://www.electricant.net/pro...
Poison Ivy can be truly awful for some to experience. I volunteered for a few years at a local botanical gardens in my area and I came into contact with the stuff a couple of times but luckily the rash was only on my arms and not severe; although it made me miserable! Not so lucky was a lady who volunteered with me; one time she was weeding an area that contained poison ivy and not thinking wiped her face with her gloved hand ... she ended up in the hospital, it got in her eyes!!
*** Be Aware and Beware; "Three Leaves, Let it Be"!!
