Henry Thompson built "Macaria" in 1859-60 for the purpose of a school for teacher William Gordon, who was under his patronage, Thompson having several school-age sons. The school did not eventuate, Gordon moving instead from Camden to "Macquarie Grove".Henry Thompson and his brother Samuel came to Camden as independent investors, setting up a general store and steam flour mill next to one another. They prospered being the middlemen for the local farmers.
The next two owners of "Macaria" were the Milfords, father then daughter. It later became Camden Grammar School and eventually was bought by Camden Council and is used as offices for the Mayor and Town Clerk.
"Macaria" has had a sad history with previous owners dying in tragic circumstances and is reputedly haunted.
Built in the picturesque style, "Macaria" has gabled windows, high chimneys, and stone trims with wooden porch and verandah.