Legal Question in Wills and Trusts in Pennsylvania

Yes, his widow and is children would be heirs of your father's estate. Surviving spouses are legal heirs.

If his second wife had a will, her estate would go to the people she designated in her will.

THIS RESPONSE IS NOT LEGAL ADVICE, SINCE I DO NOT HAVE ALL OF THE INFORMATION THAT WOULD BE REQUIRED, AND I DO NOT HAVE A REPRESENTATION AGREEMENT WITH YOU.

* If the answers to your question confirm that you have a valid issue or worthwhile claim, your next step should almost always be to establish a dialog with a lawyer who can provide specific advice to you. Contact a lawyer in your county or township.

* Another reason for contacting a lawyer is that it is often impossible to give a good answer in the Internet Q&A format without having more information. The unique circumstances of your situation and things that you may not have thought to mention in your question may completely change the answer. If you want to be sure that you have a complete answer to your question and an understanding of what that answer means, establish a connection with a lawyer who practices in the area of your concern.

Just to confirm - your mother had a policy naming your father as beneficiary. However, he remarried and never filed a claim for the benefits?

If that is the case, your father was entitled to the benefits and they would be paid to the personal representative of your father's estate for distribution to your father's wife and heirs as per his will or the intestacy laws of the county/state where he lived at the time of his death.