Question: The castle that was the Seat of the Culdares line was owned by what person from the 1920s until the 1950s? 

Context articles: Menzies of Culdares
Landenberg Junction, Delaware
Castle of Charles V
SS City of Paris (1888)
Kimball Castle
Świny Castle
Hall, Lanteglos-by-Fowey
New Castle, Indiana
New Castle Branch (Pennsylvania Railroad)
Meggernie Castle

The title Menzies of Culdares came to prominence following the extinction of the main Menzies of Weem line in 1911.
 The Clan was without a Chief until Col. Ronald Steuart Menzies of Culdares and Arndilly, the lineal heir of Colonel James Menzies of Culdares, a prominent Covenanting officer and cousin of the first Baronet, petitioned Lyon Court in 1957 and obtained arms in the title of "The Menzies of Menzies".
 His son, David Steuart Menzies of Menzies is the present Chief.
 The title Menzies of Culdares was matriculated to his second son, Simon Menzies of Culdares, in 2006.
 Meggernie Castle in Glen Lyon, Perthshire was the Seat of the Culdares line
Landenberg Junction is an unincorporated community and small railroad junction in New Castle County, Delaware near Wilmington.
 It is situated at the junction of CSX Transportation's Philadelphia Subdivision and the Wilmington and Western Railroad, which operates tourist trains between Greenbank and Hockessin.
 Both lines were formerly owned by the Baltimore and Ohio Railroad.
 The current Wilmington and Western Railroad line ran from the junction at Elsmere to Landenberg, Pennsylvania until the 1940s when the B&O decided to cut back the line to the town of Southwood, Delaware and eventually, the line was cut back to Hockessin in the 1950s.
The Castle of Charles V (Italian: Castello Carlo quinto; Leccese: Castellu Carlu Quintu), also known as the Castello di Lecce, is a castle in Lecce, Italy.
 It was first built in the Middle Ages, and was strengthened by Charles V in 1539, to a design by the architect Gian Giacomo dell’Acaya.
 To build this fortress two constructions were pulled down: the Chapel of the Trinity and the Monastery of the Benedictine Order of the Saint Cross.
 The castle did not have only defensive functions, in the 18th century one of its rooms was used as a theatre.
 From 1870 to 1979 it was used as military district.
 Nowadays it is the seat of the Cultural Affairs of the township of Lecce, a backdrop for many cultural initiatives.
 Visitors can remain charmed with the delicate ornaments of the interiors: the capitals and the decorated big room, with imposing big stained glass windows.
 The rooms of the upstairs are sustained by imposing stone columns.
 There is a legend linked with this castle: it tells that the family which owned this castle in the 14th century, the Orsini del Balzo family, kept a white bear in the moat of the castle.
 This animal was a status symbol and, at the same time, it scared prowlers.
City of Paris, was a British-built passenger liner of the Inman Line that held the Blue Riband as the fastest ship on the north Atlantic route from 1889 to 1891 and again from 1892 to 1893.
 A sister ship of the "City of New York" and a rival of the White Star Line "Teutonic" and "Majestic", she proved to be the quickest of the pre-"Campania" twin-screw express liners.
 In 1893, she was renamed "Paris" and transferred to US registry when the Inman Line was merged into the American Line.
 She and her sister were paired with the new American built "St Louis" and "St Paul" to form one of the premier Atlantic services, known as the "big four".
 "Paris" served the US Navy as the auxiliary cruiser "Yale" during the Spanish American War and is remembered for slipping into the harbor at San Juan, Puerto Rico under the Spanish guns of Morro Castle.
 After "Paris" returned to commercial service, she was seriously damaged in 1899 when she grounded on The Manacles off the British coast.
 Rebuilt and renamed "Philadelphia", she sailed for the American Line until requisitioned again during World War I as the transport "Harrisburg".
 After the war, she continued with the American Line until 1920 and was scrapped in 1923.
Kimball Castle is the former summer estate of railroad magnate Benjamin Ames Kimball.
 It is located on a prominent hill overlooking Lake Winnipesaukee in the town of Gilford, New Hampshire, United States.
 Although portions of the Kimball's original 300 acre estate have been subdivided, much of it remains conservation land managed by the town.
 The 20.1 acre subdivided portion on which the 2-1/2 story medieval-style castle stands is privately owned and no longer part of the Charlotte Kimball trust.
 Benjamin Kimball, a director of railroad companies operating in the region, built the castle and estate outbuildings beginning in 1894, and used it as his summer estate until his death in 1920, in his home in Concord.
 The castle was built by Italian stonemasons using local granite and materials imported from Europe; its construction cost was about $50,000.
Świny Castle (Polish: "Zamek Świny"; formerly "Schweinhausburg" in German) - formerly a gord, as a stronghold existed in its location already in the fifth century - securing the Lubawecki mountain pass, the site was recorded in Cosmas' documents from 1108, where the gord is recorded as "Suini in Poloniae".
 Possibly, soon after, the gord had been expanded into a military stronghold, at which time it was the seat of the castellans.
 The castle was mentioned in Pope Adrian IV's Papal bull.
 After the Bolków Castle was constructed, the castle began to lose its significance, this continued up to the nineteenth century, when the castle suffered severe damage due to hurricanes (1762, 1840, 1848, and 1868).
 The castle suffered further devastation - it was not until 1931 when the authorities had engaged in securing the castle's ruins.
 Currently the castle is privately owned.
Hall in the parish of Lanteglos-by-Fowey in Cornwall, England, is an historic estate, most prominent as the seat of a branch of the Mohun family, feudal barons of Dunster, of Dunster Castle in Somerset, of whom the first member, the warrior William de Moyon (died post 1090), had come over with William the Conqueror during the Norman Conquest of 1066.
 The family of Mohun of Hall was also seated at Bodinnick ("alias" Bodinnoc, etc.) also in the parish of Lanteglos-by-Fowey and later at Boconnoc, both in Cornwall, and was one of the four co-heirs of Edward Courtenay, 1st Earl of Devon (1527–1556), feudal baron of Okehampton, etc., of Tiverton Castle, Okehampton Castle, etc., the last of the mediaeval Courtenay Earls of Devon.
 In recognition of this in 1628 the senior representative of the Mohun family of Hall was created Baron Mohun of Okehampton, namely John Mohun, 1st Baron Mohun of Okehampton (1595-1641) eldest son and heir of Sir Reginald Mohun, 1st Baronet (1564–1639) of Boconnoc.
 The family of Mohun of Hall died out in the male line in 1712, following the death by duel of Charles Mohun, 4th Baron Mohun of Okehampton (1677-1712), who died without progeny.
 However, the family had long out-lived the senior Dunster line which died out in the male line in 1375, following the death of John de Mohun, 2nd Baron Mohun, KG, (c.1320-1375).
 Two monumental brasses survive in Lanteglos church to members of the Mohun family of Hall, namely Thomas Mohun (died c.1440) and John Mohun (d.1508).
New Castle is a city in Henry County, Indiana, 44 mi east-northeast of Indianapolis, on the Big Blue River.
 In 1900, 3,406 people lived in the town; in 1910, 9,446; in 1920, 14,458; and in 1940, 16,620.
 The population was 18,114 at the 2010 census.
 The city is the county seat of Henry County.
 New Castle is home to New Castle Fieldhouse, the largest high school gymnasium in the world.
The New Castle Branch was a rail line owned and operated by the Pennsylvania Railroad in the U.S. state of Pennsylvania.
 The line ran from New Castle north to Stoneboro (later Mercer), and is now entirely abandoned.
 At its south end, the line intersected the Erie and Pittsburgh Branch and Mahoningtown Branch.
 When the New Castle Branch ended at Stoneboro, the PRR had trackage rights east along the New York Central Railroad's Stoneboro Branch to Oil City and the Allegheny Branch, Chautauqua Branch, and Salamanca Branch.
Meggernie Castle is a castle in the heart of Perth and Kinross, in central Scotland.
 It is located halfway up Glenlyon, where the river Lyon flows through on its way to join Loch Tay.
 From the 1920s until the 1950s, the castle was owned by Sir Ernest Wills, 3rd Baronet.