Hi!
Maybe they could help
http://www.kythera-family.net and
http://www.kythera-family.net/index.php?nav=97-26&cid=14&did=5249&pageflip=1
"The Society of Kytherian Studies engages in a number of activities, including the following:
A. Archaeological Research
B. The Historical Archive of Kythira
C. Preservation and Restoration of Monuments
D. Other Interventions (conservation & culural & community activities)
E. Publications
F. Conferences
G. Other activities (distribution of Trust funds, third party support, Museum & environment, lectures excursions and guided tours)"
The Society of Kytherian Studies
5, Themistokleοus St.
Athens 10677
Greece
tel.: +30 210 3838190
fax: +30 210 3820293
Good luck with your search!