Historical clue formulations

• Cabinet position: Abbr. — 2019-09-24
• Cabinet head: Abbr. — 2018-05-31
• Cabinet member: Abbr. — 2010-10-03
• Cabinet head: Abbr. — 2010-08-16
• Cabinet position: Abbr. — 2010-07-27
• Cabinet head: Abbr. — 2008-12-07
• Dept. head — 2008-11-28
• Pres. appointee — 2008-07-18
• Cabinet member: Abbr. — 2007-08-05
• Certain asst. — 2007-03-02