Complex sentence: Stéphan Elmas dictated his memoirs to Krikor-Hagop, a young journalist; they, along with his manuscripts, are now housed at the Charentz Museum of Literature and Arts of Armenia.
Split into simpler sentences: Stéphan Elmas dictated his memoirs to Krikor-Hagop, a young journalist. His reminiscences, along with his manuscripts, are now housed at the Charentz Museum of Literature and Arts of Armenia.