Follow up to tree identification
Here are 2 photos of the trees: 1) In my yard new this year 2) In the neighbor yard, about 2 story\\\'s high, about 2.5 years old or less Thank you, Karen Dawson firstname.lastname@example.org
The first image is a Quaking Aspen Tree.
The 2nd image I can't see clearly enough to make any id for you.
This article has information on the Aspen Tree.