From my emailbox:
Susan Cummings (July 10, 1930 – December 3, 2016), German-born American film and TV actress. This news is just now being reported (https://www.facebook.com/twilightzonemuseum/photos/a.300499290053040.45440.300489103387392/1000402100062752/?type=3&theater). She was in the classic TWILIGHT ZONE episode "To Serve Man" (1962) and had a regular role on UNION PACIFIC (1958-59) with Jeff Morrow. Her first husband was actor Keith Larsen.