Gray contributed to the annals of the New York Academy of Sciences, with contributions on such topics as the Avestan texts. He served as American collaborator on the Orientalische Bibliographie in 1900-1906; revised translations for The Jewish Encyclopedia in 1904-1905; was associate editor of the Hastings Encyclopædia of Religion and Ethics (Edinburgh, 1905–15); editor of Mythology of all Races (1915–18); translated Subandhu's Vasavadatta (1913); and afterwards (1921) served as professor at the University of Nebraska. His 1902 work Indo-Iranian Phonology was published as the second volume of the 13 volume Columbia University Indo-Iranian Series, published by the Columbia University Press, in between 1901–32 and edited by A. V. Williams Jackson.
- Louis Herbert Gray (1902). Indo-Iranian Phonology: With Special Reference to the Middle and New Indo-Iranian Languages. New York: Columbia University Press.
- Gray, Louis H. & Mumford, Ethel Watts (1904). The Hundred Songs of Kamal ad-Din of Isfahan. New York: Charles Scribner's Sons.
- Gray, Louis H. (1939). Foundations of Language. New York: Macmillan.
- Gray, Louis H. (1900). "Contributions to Avestan Syntax, the Conditional Sentence". Annals of the New York Academy of Sciences. New York: New York Academy of Science. XII (1): 548–553. doi:10.1111/j.1749-6632.1899.tb54994.x.
- Keith, A. Berriedale (October 1914). "Vāsavadattā by Louis H. Gray". The Journal of the Royal Asiatic Society of Great Britain and Ireland: 1100–1104. JSTOR 25189260.
- Dames, M. Longworth (July 1903). "Indo-Iranian Phonology by Louis H. Gray". The Journal of the Royal Asiatic Society of Great Britain and Ireland: 603–606. JSTOR 25208561.
Media related to Louis Herbert Gray at Wikimedia Commons
- "Louis H. Gray" Works by Louis Herbert Gray at JSTOR
- Vasavadatta, a Sanskrit romance by Subandhu at the Internet Archive