The surname Marjoroombe was first found in Renfrewshire in the lands of Ratho-Marjori, "so named from their having been bestowed on the Princess Marjorie, daughter of Robert the Bruce, on her marriage in 1316 with Walter the High Steward. The lands subsequently called 'terre de Ratho-Marjoribankis' came into possession of a family of the name of Johnston, who from them assumed the name of Marjoribanks, though they continued to bear in part the Johnston arms. Also said to be from barony of same name which formerly comprised the greater part of the eastern division of West Calder parish. Also from their lands in Dumfriesshire. " 1
One of the first records of the family was Thomas Marjoribankis, Clerk of Rolls. "A payment was made to Thomas Meriory Banks in Aberdeen, c. 1548. John Mairjoribanks, attorney in Glasgow, 1550, and in the same year Mr. John Marjorybankis was retoured heir of John Marjoribanks his father. Thomas Marjorybankis in Glasgow had a precept of sasine in 1554, James Marjoribanks was notary public in Edinburgh in the same year, and Mr. Thomas Marioribankis of Ratho was witness, 1557." 1
"When, Walter, High Steward of Scotland, and ancestor of the royal house of tewart, espoused Marjorie (Margaret), only daughter of Robert Bruce, and eventually heiress to the crown, the barony of Ratho was granted by the king as a marriage portion to his daughter, by charter which is still extant; and these lands, being subsequently denominated 'Terra de Ratho Marjorie-banks,' gave rise to the name of Marjoribanks." 2
Samuel Marchbanks is a fictional character created by Canadian novelist and journalist Robertson Davies who wrote editorials for the Peterborough Examiner newspaper. He wrote four novels about the character. Marchbanks was in fact, a pseudonym used by Davies.