Hello Barbara, our God cover you and your sister's daughter especially with His Holy Spirit, comforting and carrying you.
Father have mercy and draw Barbara's family to Yourself through Jesus. Cause them to look up and realize they need to repent and turn to You. Would you place a great desire in their hearts now to read Your word? comfort these people please and lead them to the Lord Jesus.
amen

My condolences Barbara, this is a hard thing. The news that your sister professed Christ and the presence of the Lord comfort you.
Regina