Сеахам ауданындағы отарлаудың салдары және трагедиясы

On the impacts of colonisation in the Seaham district, Enright says:

text="Within the space of this article it is only possible to touch, and that lightly, on certain aspects of the native life. The newcomers who dispossessed the native of his hunting grounds without compensating him did not understand his language nor did they know his culture. The native was cowed by the power and culture of the white. He was crushed and humiliated when he saw the grounds that were sacred to him profaned and his people despised." On the subject of massacres of Aboriginal people and Torres Strait Islander people by settlers following colonisation, Enright writes:

text="History does not tell us of any direct violence offered to the whites in the district of Seaham. It is, fortunately, free of records of those brutal and cowardly massacres, not only of men, but women and children, that are such frightful blots on the history of other parts of our State. Notwithstanding that, not a single full blooded native of the Williams River is now existing." The Seaham district and environs, however, may not have been entirely without such "frightful blots" on its history. In 1877, a massacre at nearby Wallalong was recounted in correspondence published by the Maitland Mercury and Hunter River General Advertiser:

text="[Traditional owners] suffered a good deal of injustice at the hands of some of the first settlers, and there is now living a man who was present, as he admits, when a party had formed for the purpose of punishing the blacks for pulling the cobs of maize in the field, and carrying it off in their nets to their camps. Observing some smoke rising from the midst of the Wallalong bush, they armed themselves with muskets, and reached unobserved the camp, where a considerable number of men, women, and children were. They fired at once upon them, killing some and wounding others. The rest fled through the bush, pursued by the whites, and the whole of the natives took to the water intervening between the brush and the high land, towards which it gradually deepened, and some of the poor creatures were drowned. My informant, now a very old man, while expressing regret as to occurrence, said the worst part of the whole affray was, they afterwards discovered, that not one of those who were "wanted" was among them." Reflecting on the massacre, the correspondent goes on to remark that:

text="The haymakers in the Wallalong fields have little suspected the occurrence of these tragical scenes on the exact spots where they have stood when engaged in their peaceful occupation." While the exact location of the massacre is not provided, an account of floods in 1857 describes how "the first breach it made was at Wallalong, whence the water gradually found its way over a considerable portion of Bowthorne, Hopewell, Barty's Swamps (sic), and all the low lands in that direction". To the east, Wallalong is separated from the "high land" of Brandy Hill, previously known as Ahalton and Warren's Station Paddock, by Barties Swamp. It is possible that the shootings and drownings described as occurring "between the brush and the high land" took place on or about Barties Swamp, below present day Brandy Hill.

In 1822, Henry Dangar began surveying the Hunter Valley for settlement. Dangar divided the land into counties and parishes, reserving land for a township where the village of Seaham is now situated. About this time, a military station existed at Seaham in the vicinity of what is now Wighton Street. The village at Seaham was proclaimed in the Government Gazette on 26 July 1838. In the ensuing years, the village became a crossroads between neighbouring centres such as Raymond Terrace and Maitland. In 1838 Dr Henry Carmichael established a vineyard at Porphyry Point, north of the village. In the ensuing decades the vineyard proved prosperous, winning numerous awards in Australia and Europe. The last vintage at Porphyry was in 1915, after which the name and trade mark was sold to Lindemans. By 1854 the village comprised a post office, National School, Wesleyan Chapel, and an English Church. Classified advertising from the time suggests the town was low lying and scattered between the river and swampland. In 1893 homes near the Williams River were inundated during a disastrous flood that caused considerable damage and loss of livestock.

Prior to the establishment of the railway line between Maitland and Paterson in 1911, a line through Seaham was one of three alternative routes for the North Coast Railway. The proposed line would have connected Morpeth and Clarence Town, via Seaham. The surveyed line is visible on an 1887 map of Seaham, indicating a railway crossing over the Williams River between the township and Brandon House. At a public meeting in Clarence Town during October 1882 it was argued that the line through Seaham would present "more facilities and less engineering difficulties [than the proposed Maitland to Paterson route]". In 1903, the Seaham Hotel opened at the intersection of Dixon and Vine Streets. Thomas McDonald was publican until 1920, at which point Alfred Moore acquired the licence. A decrease in traffic and population forced a later licensee, Jack Laurie, to close the hotel in December 1932 and leave the district. In September 1935, the two storey brick building was completely destroyed by fire. In 1913 a flood caused similar damage to the 1893 flood, destroying crops and drowning livestock. The impact of the 1955 Hunter Valley floods on Seaham was not documented.

In 2002 celebrations were held in Seaham to commemorate the sesquicentenary of Seaham Public School, the centenary of the Seaham School of Arts and the centenary of the consecration of St. Andrew's Anglican Church. These celebrations were unified as Seaham Celebrates and included events that were similar to those held at the 1938 Seaham centenary celebrations.

Since European settlement, there have been a number of reported bushfires in the Seaham district. In June 1888 a bushfire, which did not threaten the town proper, almost engulfed the home of Henrietta Carmichael at Felspar. On 18 February 1926 Seaham came under direct threat from serious bushfires that almost destroyed the Seaham School of Arts and the Seaham Hotel. Another fire on 9 November 1928 destroyed a house on the Brandon estate.

Seaham was partially destroyed by bushfires on 14 January 1939, the smoke of which could be seen as far north as Forster. At Porphyry, the circa 1839 home of Mr and Mrs Gavin Ralston was completely destroyed, along with outbuildings and stables. At neighbouring Felspar, the Graham family escaped "with the utmost difficulty" after the roof of a kitchen had collapsed in their burning home. Three automobiles went in the destruction at Felspar, in addition to the period relics and furniture inside the homestead. In Seaham village, the efforts of firefighters were concentrated on extinguishing flames around the post office and School of Arts (1902). Although both public buildings were saved, the Seaham Presbyterian Church, Seaham Public School and several homes were lost. A "good save was effected" at the circa 1884 homestead, where the fire was extinguished at the backdoor.

In 1944, another bushfire swept down on Seaham and nearby Glen Oak. The fire was blocked on Clarence Town Road near the Glen Oak School of Arts. At Seaham, the fire was reported to have jumped the Williams River at Felspar, the same estate where a house of historical importance was lost in the 1939 bushfires. The town proper came under threat from bushfires again in 1951 from a fire in the Wallaroo State Forest. This bushfire, which also threatened Karuah, was reported to be "out of control" on the night of 15 November 1951, prompting the residents of Seaham to evacuate.

Adjacent to Brandy Hill, a high hill located approximately to the west of Seaham township is the Brandy Hill Quarry. Travelling between the quarry and Raymond Terrace meant travelling a circuitous route through the Seaham township so Brandy Hill Drive was constructed to provide a shorter and more direct route. In the 1980s the land around Brandy Hill Drive was subdivided and the estate was named Brandy Hill. On 7 April 2000 the subdivision was formally approved as a locality and became a suburb in its own right. The suburb is almost surrounded by Seaham, while the hill itself remains within the suburb.

The heritage listed Edgeworth David quarry in Torrence Street is an historic quarry that was gazetted for preservation for scientific purposes in 1925. It is named after the Australian geologist Edgeworth David, who discovered signs of late Palaeozoic glaciation in the Seaham area during 1914. The deposits at the quarry, identified as 'varve shale' in 1919, have been considered by geologists as the 'finest [example] in the world'. The National Parks and Wildlife Service manage the site, which can be visited by everyone interested in geology and geological history of the Seaham area.

Only a handful of Seaham's historic homes are still standing. These include Brandon (established 1884), Burnbrae, and Eskdale. Brandon house still has thick, black tape over its internal windows. The tape was used during World War II to prevent the windows shattering in the case of an air raid. Other important homesteads included Porphyry (established 1838) and Felspar (circa 1878) – both of which were destroyed in the 1939 bushfire.

Brandon, established in 1884 on the site of Alexander Warren's Brandon Hall, is one of the last original homesteads in Seaham. The house has remained in the Fisher family for over 140 years and is the only example of Victorian architecture in the town.

Eskdale, built in the 1830s, is one of the oldest homesteads in the district and is located on the outskirts of Seaham near Brandy Hill. It was built by Walter Scott, who also built Wallalong House.

Although a school has operated at Seaham since 1844, the existing public school began in an iron schoolhouse near the river in 1852.