He was probably the first Bahá'í to reach American soil. [BFA1:26]
He produced some of the earliest Bahá'í material to be published in English, including translations of the Writings including the Kitáb-i-Aqdas which was unpublished. He reportedly did not remain a member of the Bahá'í community but returned to Lebanon and became a Protestant minister. He passed away in 'Ayn-Zhalta in 1924. [Bahaipedia]