Chalmers is a Scottish variant of the English surname Chambers.
English: occupational name for someone who was employed in the private living quarters of his master, rather than in the public halls of the manor. The name represents a genitive or plural form of Middle English
cha(u)mbre ‘chamber’, ‘room’ (Latin
camera), and is synonymous in origin with Chamberlain, but as that office rose in the social scale, this term remained reserved for more humble servants of the bedchamber.
Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4
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