Retirement tax questions

Hi Opus17.  Sorry for not supplying complete info.

This 1099-R is a Form CSF 1099R and is for Mom's survivor benefits of Dad's OPM (Office of Personal Management) pension.  My Dad was a retired Civil Servant (I think he retired in 1999).  This 1099-R is for Mom's survivor benefits of Dad's pension.

Payer is Office of Personal Management Retirement Operations

Payee is my Mom