I have a photo of a historic marker located in St. Lawrence County, NY which reads as follows:
Two War of 1812 soldiers while on a march from Plattsburgh to Sackets Harbor, died and are buried on this historic spot.
- - - - - - -
The marker is at the side of what is known as "The Old Military Turnpike", and about 100 yards into the woods from it are the newly refurbished graves of Elijah Sackett who died April 13, 1813, and an "unknown".
I have a scanner and can easily scan these pictures and send them to anyone with an interest, so if you're descended from the Sackett's who may have lived in northern NY State in the late 1700s - early 1800s, let me know and I'll be happy to share.