No founder, establishing act or first observance has been documented for National Keith Day. It circulates through holiday listings, print-on-demand merchandise and social reposts, and even its date is contested, with one listing giving July 6 instead.
The family that carried the name out
The house is Keith Marischal, built as an L-plan tower house in 1589 for George Keith, fifth Earl Marischal. The Gazetteer says his family had held the lands since a grant by King David I.
The name was already travelling without them. The Dictionary of American Family Names records that numerous bearers of the surname settled in Ulster during the 1600s, one documented route by which an East Lothian estate name spread beyond Scotland. The family did not keep the estate itself, and it passed to the Earls of Hopetoun in 1696.


