|Born||October 31, 1953
|Occupation||News writer, producer WCBS-TV|
She worked on Rockefeller's vice-presidential staff, in Washington, D.C., for two years. There was speculation in the press regarding the nature of the relationship between Rockefeller and Marshack. For example, long-time Rockefeller aide Joe Persico claimed in the PBS documentary about the Rockefeller family, "It became known that he had been alone with a young woman who worked for him, in undeniably intimate circumstances, and in the course of that evening had died from a heart attack." News organizations widely reported that Marshack was a named beneficiary in his will, though the bulk of his estate was left to his wife with other large gifts going to museums.
Marshack has remained largely out of the public eye since 1979. In 1992, it was reported that she was still living in New York working as a news writer for WCBS-TV, but the Washington Post noted she declined to comment, saying "I don't do interviews." According to newspapers in September 1994, she was a news writer and producer at WCBS-TV. In December 2008 Parade reported that Marshack married a journalist and was living in Southern California. As of July 2013, Marshack is living in Placerville, California and is married to Edmond Jacoby.
- Official records of Eldorado County Registrar of Voters
- Although the name is sometimes incorrectly spelled as "Marshak", reliable news sources render the name as "Marshack".
- According to AP employment application, as cited in Robert D. McFadden, "Call to 911 for Stricken Rockefeller Did Not Identify Him", The New York Times, 30 January 1979
- Robert D. McFadden, "New Details Are Reported on How Rockefeller Died", The New York Times, 29 January 1979; Robert D. McFadden, "Call to 911 for Stricken Rockefeller Did Not Identify Him", The New York Times, 30 January 1979; Robert D. McFadden, "Rockefeller's Attack Is Now Placed at 10:15, Hour Before 911 Call", The New York Times, 7 February 1979; Robert D. McFadden, "Rockefeller Aide Did Not Make Call to 911", The New York Times, 9 February 1979; "Marshack Friend Makes Statement on Rockefeller", The New York Times, 11 February 1979.
- Robert D. McFadden, "Call to 911 for Stricken Rockefeller Did Not Identify Him", The New York Times, 30 January 1979
- PBS documentary
- See, for example, Peter Kihss, "Bulk of Rockefeller's Estate Is Left to Wife; Museums Get Large Gifts", The New York Times, 10 February 1979; this piece that aired on NBC's Evening News on February 9, 1979; and this piece by Max Robinson that aired on ABC Evening News on February 9, 1979.
- "Rocky Recalled", Time magazine, February 12, 1979
- "The Reliable Source, Remember Megan Marshack? She'd Rather You Not." The Washington Post. Washington, D.C.: June 5, 1992. pg. c.03. (91 words).
- Charlotte Observer. NewsBank. September 14, 1994.
- Scott, Walter (2008-12-28). "Walter Scott's Personality Parade". Parade (Parade Publications). "Today Marshack is happily married to a newspaperman and lives in Southern California."