Historical clue formulations

• Ex-G.I.'s org. — 2018-01-01
• Org. for ex-G.I.s — 2017-06-11
• Post letters — 2014-04-20
• Ex-G.I.'s org. — 2013-11-01
• Ex-G.I.'s grp. — 2007-12-12
• Ex-G.I.'s grp. — 2005-10-03
• Flag Day grp. — 1996-07-23
• Old G.I.'s group — 1996-05-03