
Greenbush Cemetery resides in Brockville, Leeds and Grenville United Counties, Ontario. Also known as Smith's Cemetery and Old Greenbush Cemetery, the burying ground is no longer active. The earliest, recorded interments date from the 1820s. The last burial occurred in 1952. When Greenbush Cemetery as established, the town of Brockville was known as Elizabethtown.
https://www.findagrave.com/cemetery/2291181/greenbush-cemetery
http://www.archives.gov.on.ca/en/microfilm/cemetery_leeds.aspx