The house was built of handmade bricks packed with cow hair and mud, stringybark shingles and cedar joinery.

[1] He died in February 1865,[2] and his younger brother Thomas James Lawson inherited the property, and married Eleanor M. Murray, daughter of the Surveyor-General W. R. Davidson, eight months later.

To avoid confusion, the remaining part of the property containing the large c.1886 woolshed and the original homestead is generally now known as Old Errowanbang.

[1] On Old Errowanbang, Hebden was responsible for the construction of a water race system running from the north-east corner on Flyers Creek through to Wire Gully mine.

Another water race ran from the eastern side of Flyers Creek, near Hopkins new homestead, to the Junction Reefs Mines.

[1] After Richard Officer's death, his brother Ernie took over the management for a short time until Bill McKay came with his wife and two children.

[1] Ted Holland followed Bill McKay as manager until 1952 when this part of the property was resumed and opened for Soldier Settlements in 1952.

On 15 June 1799 he paid £300 for his commission in the New South Wales Corps arriving in Port Jackson in 1800 before being sent to serve at Norfolk Island.

[1] After serving as aide-de-camp to Major George Johnston, commandant at Newcastle then in Governor Macquarie's Veteran Corps, Lawson retired to his grant at Prospect.

[1] Lawson returned to service in 1819 as Commandant of the settlement of Bathurst from where he spent time surveying the district, resigning from the post in 1824.

During his explorations he discovered coal near Mount York, copper north of Bathurst and silver in the western country.

[1] Acquiring large areas of land west of the Great Dividing Range, Lawson became an important landholder as well as one of the 12 largest stockowners in the Bathurst district carrying sheep, cattle and horses.

After accompanying his father to Bathurst, he became the first native born white Australian to receive a grant of land for sheep grazing in the Western Country.

[1] Allowed to occupy lands "beyond the limits of location" he established and managed, with his father, seven pioneering stations including Errowan-bang on Flyers Creek.

Caroline died in 1875[1] Hopkins was born at Coolah Point near Mumbai in 1848, the son of a Royal Navy captain.

[1] Wilson was the managing director of Australian Estates at the time of the purchase and with Hopkins also had interests in gold and copper mining at Blayney.

[1] Other bodies which Hopkins was involved in include the Montenegrin Fund, Allied Day Committee and the French Australian League.

[1] Hopkins was a keen writer, preparing a number of plays which were successful in Australia, Canada and the United States.

Built on the side of a hill, the shed has a unique plan based on four long wings linked in the centre by the main shearing floor.

A floor above the baling area, the piece picking room is accessed from stairs behind the classing bins and has a chute which led to the main wool press.

[1] Chutes for the shorn sheep lead from the shearing area to underneath the shed and assist in bracing the structure.

A large opening at the end of the storage area originally had a flap which folded down to allow the bales to be taken out onto carts or trucks for transportation.

The pipework for the water race from Flyers Creek which was intended to power the shears survives close to this room.

The massive stone piers supporting the trusses over the sorting area have contributed to the long term stability of the shed.

[10][1] Old Errowanbang Woolshed was listed on the New South Wales State Heritage Register on 23 June 2006 having satisfied the following criteria.

[1] The place is important in demonstrating aesthetic characteristics and/or a high degree of creative or technical achievement in New South Wales.

Old Errowanbang Woolshed is of state significance for the technical innovations evident in its four-level design and the internal arrangement of pens and shearing spaces related to the speed of individual shears; is aesthetically distinctive as a large timber building of cypress pine with multiple stories on massive stone piers, stop-chamfered posts, mitred timber flooring and high quality hardware throughout the interior, and has landmark qualities as a rambling building that steps down the hillside in its countryside setting in the Flyers Creek valley.

Old Errownbang Woolshed has important associations with several generations of shearers, many of whom have their individual names painted on various pens; and contributes to the rural identity of the inhabitants of the Errowanbang area.

[1] The place has potential to yield information that will contribute to an understanding of the cultural or natural history of New South Wales.

[1] The place possesses uncommon, rare or endangered aspects of the cultural or natural history of New South Wales.