Jessie Carson

This was in a box of photos my grandmother had. She had no idea who it was. This woman may have been related to Allbritton-Pier-Simpson families???? If anyone has any idea who she is and who she married please contact me.

I would like to know her parents names? What year (about) this was taken as per the way she is dressed? Who she was married to? If she had children and what there names were? What state Mount Vernon is in? (there are many states with the towns Mount vernon)