Frequency: (788)
(number of times this surname appears in a sample database of 88.7 million names, representing one third of the 1997 US population)
Irish: variant of McCaslin. The addition of -d is due to English speakers’ perception of the devoicing of Gaelic final -n.
See the Key to the Dictionary or consult the General Introduction for further explanation.
Dictionary of American Family Names. Copyright © 2006 Patrick Hanks. All rights reserved.
