Question: Where did the original owner of Great Northern 325 run from?

Context articles: Yarmouth–Lowestoft line
Swetman House
GNR Class A1 1470 Great Northern
SS Great Northern (1914)
SS Northern Pacific (1914)
Helpston railway station
Seneschal's House, Halton
Walton (Cambridgeshire) railway station
Great Northern 325
Great Northern Railway (U.S.)

The Yarmouth–Lowestoft line was an East Anglian railway line which linked the coastal towns of Yarmouth and Lowestoft.
 It opened on 13 July 1903 as the first direct railway link between the two towns and was constructed by the Great Eastern Railway and the Midland and Great Northern Railway in the hope of encouraging the development of holiday resorts along the coast.
 In the event, although the line was built to high standards and not insubstantial cost, intermediate traffic refused to develop and competition from buses and trams eroded the little that had been generated.
 Fish traffic was carried in large quantities until the 1930s when it fell into decline.
 In 1953, when major repairs to the Breydon Viaduct were required, it was decided to discontinue through services from the Midland and Great Northern to Lowestoft and to divert London trains to Lowestoft via Norwich.
 After the Midland and Great Northern and Yarmouth–Beccles line closed to passengers in 1959, the Yarmouth–Lowestoft line was upgraded to accommodate the diverted traffic, but after services were switched to Yarmouth Vauxhall in 1962, it was singled and the stations made unstaffed halts.
 With only a local service running between vandalised stations, the decision was taken to close the route on 4 May 1970 in favour of bus services which were judged adequate for most of the year.
Swetman House, also known as Swetmann House and Gerhard "Stucco" Johnson House, is a historic residence at 325 5th Avenue in Seward, Alaska.
 The house was constructed in 1916 and was originally located adjacent to Seward's Mount Marathon.
 In 1920 or 1921, the original owner, Gerhard "Stucco" Johnson, sold the house to pharmacist Elwyn Swetman on condition that Swetman move the property to his own lot.
 The property was added to the National Register of Historic Places on February 17, 1978.
The Great Northern Railway GNR Class A1 1470 Great Northern was the first of 52 A1 class locomotives.
 It has also represented three distinct stages in the history of the British 4-6-2 "Pacific" steam locomotives designed by Nigel Gresley.
 For the Great Northern Railway (GNR), a constituent company of the London and North Eastern Railway before the amalgamation of 1923, for which they became a standard design.
 Eventually "Great Northern" was completely rebuilt as Class A1/1.
Great Northern was a passenger ship built at Philadelphia by William Cramp & Sons under supervision of the Great Northern Pacific Steam Ship Company for the Spokane, Portland and Seattle Railway Company, itself a joint venture of the Great Northern Railway and Northern Pacific Railway.
 "Great Northern", along with sister ship "Northern Pacific" , were built to provide a passenger and freight link by sea between the northern transcontinental rail lines via the Spokane, Portland and Seattle Railway terminal at Astoria, Oregon and San Francisco beginning in spring of 1915.
SS "Northern Pacific was built as a passenger ship at Philadelphia by William Cramp & Sons under supervision of the Great Northern Pacific Steam Ship Company for the Spokane, Portland and Seattle Railway Company.
 "Northern Pacific", along with sister ship "Great Northern" , were built to provide a passenger and freight link by sea between the Great Northern Railway Lines and Spokane, Portland and Seattle Railway terminal at Astoria, Oregon and San Francisco beginning in spring of 1915.
 The ship was acquired on 17 September 1917 for use as a transport ship for the United States Navy during World War I, commissioned USS "Northern Pacific and later, after transfer to the United States Army, as the Army transport USAT "Northern Pacific".
 She was destroyed by fire in 1922.
Helpston railway station was a station in Helpston, Cambridgeshire, on the Midland Railway's Syston and Peterborough Railway.
 It was closed in 1966.
 The Great Northern Railway main line runs adjacent to the Midland Railway at this point, but the Great Northern never had a station in Helpston.
 This was due to an agreement whereby the Midland carried materials to the site during construction of the Great Northern, and in return the Great Northern offered no competition for services on this section.
The Seneschal's House stands at the corner of Halton Brow and Main Street, Halton, Runcorn, Cheshire, England.
 It is recorded in the National Heritage List for England as a designated Grade II* listed building.
 The house is dated 1598, which makes it the oldest standing building in Runcorn.
 It was latterly a farmhouse although was originally built by the judge John King, called to the bar in London in the late 16th century and was originally known as "John King's New House"; the occupation of the original owner of the house, led to a later owner, Geoffrey Barraclough, Professor of History at Liverpool University in the mid 20th century coining the current name of the house.
 The house was, in fact, inhabited originally by a seneschal, that is the original owner, John King.
Walton railway station was a station in Walton, Cambridgeshire.
 It was on the Midland Railway's Syston and Peterborough Railway line between Peterborough and Stamford.
 It was closed in 1953.
 The Great Northern Railway main line runs adjacent to the Midland Railway at this point, but the Great Northern never had a station in Walton.
 This was due to an agreement whereby the Midland carried materials to the site during construction of the Great Northern, and in return the Great Northern offered no competition for services on this section
Great Northern 325 is a restored SDP40 diesel locomotive originally owned by the Great Northern Railway.
 It was built in May 1966 as the last of six SDP40s ordered by Great Northern to replace their aging passenger locomotive fleet.
The Great Northern Railway (reporting mark GN) was an American Class I railroad.
 Running from Saint Paul, Minnesota, to Seattle, Washington, it was the creation of 19th-century railroad entrepreneur James J. Hill and was developed from the Saint Paul & Pacific Railroad.
 The Great Northern's (GN) route was the northernmost transcontinental railroad route in the U.S.