Antechamber Bay Lonely Graves is the collection (at least four) of the original burials in the area of Chapman River and Antechamber Bay on the original Lashmar farm that is now within Lashmar Conservation Park, on the original Thomas Farm (privately owned farm). There are several burials of the original residents of the area who were not buried on farm properties - including Mary Seymour, two Tasmanian Aboriginal women and a Chinese man. There were also people who were cremated and their ashes scattered in the vicinity of Antechamber Bay and Chapman River.
[adapted from] https://www.findagrave.com/cemetery/2503891/antechamber-bay-lonely-gravesSee images of memorials to Jane Lashmar 1847-1865, Thomas Clark c.1802-1892