Below is a list of German expressions used in English. Many of these are used to imply that the thing being expressed is German, as in Frau or Reich, although sometimes it has no German implication, as in doppelganger or angst.
... January 22 - George Balanchine, choreographer (+ 1983)
January 26 - Ancel Keys, scientist
February 1 - S. J. Perelman[?], humorist, author
February 4 - MacKinlay ...