If you are unable to get the information by other means, you should file an action in court. The language of your separation agreement will determine whether you file a contempt or modification. She would be forced to answer the complaint and reveal her address in the court documents. You need the ability to serve her though, so you should do you best to find out where she is living, working or where a constable will be able to serve her.
Selected as best answer
Absolutely consult an attorney. More information is needed to properly evaluate the claim. If you were working then this is a worker's comp case but there may also be some third party liability that needs to be investigated ASAP!!
3 lawyers agreed with this answer
The type of employer will determine what type of access they have to your CORI. Required 1 employers should not see this as probation is complete and it is a non-conviction. Any employer with required 2 or 3 access will see non-convictions unless sealed. Required 4 access can even see sealed histories.
2 lawyers agreed with this answer
I agree with Attorney Erlich. As I am sure you are aware, this also prevents you from legally possessing a firearm.
1 lawyer agreed with this answer
More details are needed about your situation. Are you in the middle of a divorce or are you already divorced? The initial process would differ, either way would require permission of the court to remove your minor child from the Commonwealth. You should contact an attorney to help you through the process, but you want to get all of the documentation you can to show that a move would be in the "best interest of the child."