How old the forms were that were deleted?

Also is there any way to tell how old the forms were that were deleted?  Or when the submissions originally occurred?

You can check it from history page https://www.jotform.com/myaccount/history. 

On that page, it will show you the date when the form was deleted.

Reference guide https://www.jotform.com/help/370-How-to-View-Your-Account-Activity-Logs.

Let us know if you have any questions or if you need further assistance.