Sunapee's vital records were published in the annual town report beginning in 1887. See the attached .pdf files below. More to come...
Sunapee has 8 cemeteries--Georges Mills, Old Eastman, New Eastman, Lower Village, Crowther, Colby, Cooper, and South Sunapee--with graves dating as early at 1800. A map is attached below in 2 parts. And please follow this link to the town website for records of all the known graves in Sunapee as of about 2007: http://www.town.sunapee.nh.us/Pages/SunapeeNH_BComm/CemeteryTrustees.
You will find attached below an index to all known burials in the Town of Sunapee through 2014 in excel spreadsheet format. A document explaining how to use the list accompanies it in MSWord format.