Albert Einstein vacationed for two weeks in September 1946 at Deep Creek Lake in western Maryland. It was a well-kept secret. This paper describes his ordinary and yet so extraordinary visit, its historical context, his daily routine, and some interesting stories that reveal his simplicity, humanity, and unique sense of humor.

1.
J. Suter Kegg, Cumberland News, September 13, 1979.
2.
Ze'ev Rosenkranz, The Einstein Scrapbook (Johns Hopkins University Press, 2002), pp. 141, 146–147.
3.
Ibid., pp. 146–147.
4.
Deep Creek Lake, Past and Present (Garrett County Historical Society, 1999), p. 9.
5.
Evelyn Einstein, foreword to Dear Professor Einstein: Albert Einstein's Letters to and from Children, edited by Alice Calaprice (Prometheus Books, 2002).
6.
Isaac Hirsch, My Story, printed by Daniels Photo Offset (April 1955).
7.
Linda Browning, Luke Mill Report (Westvaco Corp., Summer 1979) and the Glades Star (Garrett County Historical Society, Sept. 1981).
8.
Ze'ev Rosenkranz, The Einstein Scrapbook (Johns Hopkins University Press, 2002), pp. 76–77.
9.
Philipp Frank, Einstein: His Life & Times (The Alden Press, London, 1949), p. 198.
10.
Einstein: A Centenary Volume, edited by A.P. French (Harvard University Press, 1979), p. 276.
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