"Narellan Camp" was an extensive military facility established as a place for army units to form up before they were posted. Situated approximately 1.5 miles from Narellan, it clustered around four points of the intersection of Cobbitty and Northern Roads. The Harrington Park corner accommodated the guard room and camp hospital whilst the Orielton corner, held the engineers' depot, canteen and armoured vehicles that were concealed in the bush. On the Denbigh corner were 150 to 200 tents, most accommodating six men each, while the corner that is now part of Oran Park Raceway held the camp administration and the horse lines. The Army used other neighbouring historic properties such as Studley Park and Brownlow Hill and the Camden district also accommodated RAAF training squadrons at the local Aerodrome. At by the Hume Highway (formerly the Great South Road), the Narellan campsite was ideal, because the district was sufficiently distant from Sydney for security purposes but close enough for regular contact. The Army removed the whole facility when the war ended leaving only areas of bitumen and concrete. An aerial photograph from the time of transfer to the Fairfax family indicates the garden as having a defined southern edge with the garden extending east over part of the area (?) shown as 'garden (i.e.kitchen/vegetable garden) and gardener's house on the 1852 map. Many of the plantings are mature but the traditional viewline to the Razorback Range may have been appreciable. The location of the race course is no longer apparent but the cleared alluvial flats are still cleared. Between Cowpasture Road (Camden Valley Way) and the cleared flats in 1852 there was an area marked "bush land". This is now cleared with scattered trees and the current entrance road deviates from its original marked course in this location. Tropman and Tropman have analysed the 1952 map of the property stating that the "fields around the house remain, although in attenuated form". Sir Warwick Oswald Fairfax Kt., cr. 1967 (b.1901– d.1987) became sole owner of Harrington Park in 1956. Warwick Fairfax joined the staff of The Sydney Morning Herald in 1925, and was appointed director in 1927. Following the death of his father, Sir James Oswald Fairfax in 1928, Warwick was appointed Managing Director and Chairman of Directors in 1930. Following the incorporation of John Fairfax Ltd. in 1956 he was appointed Chairman, a position he retained until 1977. He was