Direct beneficiary of credit union account

My mother died in 2022 and we filed her final tax year with my father as a joint return.  They have a family trust so all property was in that joint trust left to my father. She had no other  income  in her name other than social security.  She had one bank account that she left to my sister and I as direct beneficiaries but that did not get distributed until January 2023.  My father just received a 1099 for the interest paid in 2023 on that account.  HO do my sister and I handle this interest on our taxes for 2023?