Good Morning Patty, 

Thank you for contacting the U of M Extension Service. 

Our expert has viewed your photos and gave me the following information: 

This is a caterpillar of the Eastern Buckmoth (Hemileuca maia). The inquirer should be warned about handling it. Its bristles are quite toxic and if they contact human skin, the person could experience a rather adverse reaction.

See:

https://www.insectidentification.org/insect-description.php?identification=Buck-Moth