My wife's Marchi ancestors are also from Barga. Her grandmother was Amelia Marchi, born 1888 in Barga. She moved to Yonkers, NY and married Joseph Castelvecchi. Her sister Eletta moved to Scotland and married Luigi Bechelli. Her other sister Leonetta moved to England and married Wilfred Owens, and subsequently moved to the US. Their parents were Luigi Marchi and Assunta Corrieri. Luigi's parents were Pietro Marchi and Matilde Togneri. Rumor has it that the family originated in Austria, but I doubt this. However, I have been unable to trace the family earlier than about 1870 which is quite strange given the excellent records that exist for Barga. Please write if you have any information or just want to discuss Marchi genealogy.