author
Best known for a detailed early study of the Manobo people of Mindanao, this writer and field researcher spent years documenting Indigenous communities in the Philippines. His work remains a window into early twentieth-century anthropology and travel-based observation.

by John M. Garvan
John M. Garvan is remembered for The Manóbos of Mindanáo, a major ethnographic work published by the United States Government Printing Office in 1931 as part of the Memoirs of the National Academy of Sciences. The book draws on extended firsthand observation and records the social life, beliefs, and material culture of the Manobo people in eastern Mindanao.
Sources available here also connect Garvan with research among Negrito communities in Luzon, where later linguistic scholarship cites his field visits and his recording of the name Manide. Taken together, these references suggest a researcher whose work focused on Indigenous peoples of the Philippines and whose writings have continued to be used by later scholars.
Clear biographical details beyond his fieldwork and publications were not well confirmed in the material I could verify, so this overview stays close to the published record.