Historical clue formulations

• Kennedy in-law — 2016-05-19
• McGovern's 1972 running mate — 2011-12-09
• First Peace Corps director — 2001-11-17
• First director of the U.S. Peace Corps — 2000-05-26
• Peace Corps director Sargent — 1998-05-31
• Running mate of 1972 — 1994-04-17