Looking for Isabello and Pro ancestors

Hello!

I'm needing help on finding records for my husband's Italian grandparents.  We don't speak Italian nor can we read it so any help is appreciated.

Domenico Vincenzo Isabello, born 3 November 1877 in Avigliana Torino, emigrated to America in 1904.  His parents were Andrew and Mamie Isabello.  When Domenico died (12 September 1939 in Pennsylvania, USA) his obitutary said he had four brothers and five sisters living in Italy at the time of his death.

Angelina Pro, born in La Canavese (Torino?), emigrated to America in 1910.  Her parents were Louis and Maria Pro.  Maria, accompanied by her daughter Emma, followed Angelina to America in 1911.  Louis was dead by that time.

Domenico and Angelina met and married within a few months of her arrival.  I'd like to find information on Domenico's siblings as well as the maiden names of both mothers.  Any help would be greatly appreciated.

Frances