Lloyd de Vries just posted the following over at VSC:

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Here are the resolutions introduced in the House of Representatives in this congressional session (since January, that is) calling for the issuance of postage stamps:

• Honoring Americans who distinguished themselves by their service in the armed forces. Rep. Jo Ann Davis, R-Va., January 4, 2005
• Commemorating Juan Nepomuceno Seguin (patriot of Texas Republic and the state). Rep. Gene Green, D-Texas, January 4, 2005
• Honoring the late Rep. George Thomas ‘Mickey’ Leland. Rep. Shirley Jackson-Lee, D-Texas, January 6, 2005
• Promoting public awareness of Down syndrome. Rep. Pete Sessions, R-Texas, February 1, 2005
• Issue a semipostal to benefit the Peace Corps. Rep. Barbara Lee, D-Calif., February 2, 2005
• Honoring former Rep. Shirley Chisholm. Rep. Barbara Lee, D-Calif., February 14, 2005
• Honoring the nation’s coal miners. Rep. Shelly Moore Capito, D-W.Va. February 15, 2005
• Honoring American farm women. Rep. Mark Green, R-Wis., February 16, 2005
• Honoring law enforcement officers killed in the line of duty. Rep. Bob Filner, R-Calif. March 3, 2005.
• Honoring Roy Campanella. Rep. Charles Rangel, D-N.Y., March 17, 2005
• Commemorating Congressman Adam Clayton Powell, Jr. Rep. Charles Rangel, D-N.Y., March 17, 2005
• Honoring Arthur Ashe. Rep. Charles Rangel, D-N.Y., March 17, 2005 (Not paying attention, is he? The stamp was
  announced seven months before his resolution.)
• Honoring Diwali. Rep. Frank Pallone, D-N.J., April 20, 2005
• Honoring famous Staten Island-born 19th Century Hudson River painter Jasper Francis Cropsey. Rep. Vito Fossella,
  R-N.Y., April 21, 2005
• Honoring the USS New Jersey and all those who served aboard her. Rep. Mike Ferguson, R-N.J., May 11, 2005

All of these bills were referred to the Government Reform Committee. None has been reported to the House floor, as far as I
can tell.

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Here is a link to the original discussion: http://forums.delphiforums.com/stamps/messages?msg=19195.1

In looking at the list, I would have to say that other than the painter, this is a bunch of political hooey designed to gain the favor of some special interest group. Politicians make me sick!!