1973 2nd grade, Clown (Outfit sewed by my sister).
1974 3rd Grade, Paul Revere
1976 4th Grade, Robot. No picture, darn it.
1977 5th Grade. Didn't dress for Halloween, but rigged up a scarecrow in the yard with a microphone.
1978 6th Grade. Didn't dress for Halloween, but rigged up a bat that slid down a wire from a second-floor bedroom window.
I think Junior High and High School I felt I was too old for Halloween. Fortunately I grew out of that phase.
1986 Software Pirate (College Halloween Party)
1987
Lestat (College Halloween Party)
1988 Code Warrior / Road Warrior (College Halloween Party)
1989 Dirty Laundry (College Halloween Party). No picture...yet....but reprised in 2003.
1993 or so, reprised the Software Pirate, Stephanie's party. No picture...yet.
1995 Reprised the Software Pirate (Wilson Halloween party)
1996 Zombie
1997 Zombie with snakes (Cyndi's party)
1998 Low-tech Borg (Wilson Halloween party)
1999 Darth Maul
2000 Not-So-Incredibile Hulk
2001 Skeletomn
2002 Nazgûl
2003 Dirty Laundry
2004 Asteroid
2005 Zorro
2006 Snakes on a Plane
2007 Star Trek Black/White Guy
2008 Large Hadron Collider (Also wore at Dragon Con 2009)
2009 Ash (Bruce Campbell) from EVIL DEAD/ARMY OF DARKNESS (Also wore at Dragon Con 2010).
2010 Chilean Miner with Rescue Pod
2011 Green-Screen Invisible Man (Also wore at Dragon Con 2012)
2012 The Fly (1958 movie version) (Also wore at Dragon Con 2013)
2013 Sharknado Chainsaw Guy (Also wore at Dragon Con 2014)
2014 Kerbal from the computer game Kerbal Space Program