[1] It is located approximately five miles from Middleburg in the Loudoun Valley close to the Fauquier County border.

Founded in about 1740 by Quakers who had migrated down from Pennsylvania, via Maryland and across the Potomac to the fertile farmlands of Northern Virginia, the village and its surrounds - later to become known as Union, and then Unison - was referred to as "Greenland" or "Butterland" in early 1800s deeds.

The name "Butterland" was said to have come about as a nod to the Royal taxes at the time being collected in pounds of butter, rather than coin.

Yardley Taylor, writing for Joseph Martin's Gazetteer of Virginia in 1835, used the old name "Union" to identify Unison and counted 25 dwellings, 3 houses of worship, a school, 2 general stores, a blacksmith, and a tavern.

Because Stuart's delaying tactics at Unison cost the Federals time, a major portion of Lee's force had crossed the Blue Ridge, reached Culpeper and now had time to regroup and prepare for the next major encounter between the two sides at Fredericksburg.

The store was purchased at highest bid by a local business at a public auction in 2001, and the building subsequently renovated.

It was purchased this time by a local philanthropist, Dr. Betsee Parker, owner of Huntlands, who then gifted the building to the Unison Preservation Society.