Okinawa Genealogical Society of Hawaii (OGSH) in Hawai‘i and Okinawa Prefectural Library launched a service to help individuals to find the roots of their ancestors.
C/O Hawaii United Okinawa Association
94-587 Ukee Street
Waipahu, HI 96797 USA
Phone: 808-676-5400 (country code +1)
Okinawa Prefectural Library's First Generation Immigration Genealogical Reference Service
The Hawai'i Collection in Hamilton Library has a list of useful directories for those who conduct general genealogy research.
"GENEALOGY: Ethnic Hawaii Genealogy Resources: Okinawan": https://guides.library.manoa.hawaii.edu/c.php?g=105229&p=684160
The page above is created and maintained by the Hawai'i Collection Librarians. The list includes the important published directories related to Okinawans in Hawai'i.
On August 31, 2017, Professor Masayuki Dana (田名真之), Director of Okinawa Prefectural Museum & Art Museum, delivered a public lecture on Ryukyuan genealogy in Hamilton Library. The lecture was delivered in Japanese. A simultaneous interpretation accompanied the lecture. Hamilton Library and the Center for Okinawan Studies at the University of Hawai'i at Mānoa (COS) co-sponsored the event.
More information on the event is available at https://guides.library.manoa.hawaii.edu/ryukyu_kafu
The page above includes the video-recording of the lecture and transcripts (both in original Japanese and English interpretation)