OGS Provincial Index (OGSPI) is now part of The Ontario Name Index (TONI). OGSPI alone contains data from censuses, birth, marriage and death registers, references in books, land records, ship lists, military records and a host of other references. Each entry points to the original source, which you can then look up for the complete reference. Currently there are over 12 million names – and it keeps on growing.
Brant Gibbard began building a database for his Powley (UEL) family and it grew into a searchable database containing many names from Frontenac and Lennox & Addington Counties. http://www.jbatzloff.com/genealogy/getperson.php?personID=I05539&tree=Jules .
Another excellent resource for UEL surnames is the Loyalist Directory on the website of the United Empire Loyalists Association of Canada (UELAC).
The Frontenac County relations of Terrence J. Boyle — Namely, the Boyles and Shortalls of Pittsburg Twp., the McAuleys and Keeleys of Loughborough Twp., the Dalys, Swifts, McGarveys and Waggoners of Kingston Twp., and the McGraths, Kennedys and Murphys of Storrington Twp. and their many descendants.
The Dr. H.C. Burleigh Fonds are now available online via the Internet Archive. This collection is an excellent place to browse for Kingston-area surnames, courtesy of Queen’s University Archives.
Digital Kingston also includes a browsable list of Kingston-Frontenac surnames.