Ah were wrong. Apparently the stuff from Jackson is now in Kalamazoo MI. and it wasn’t a Gemini capsule it was the Apollo 9 capsule.
http://www.roadsideamerica.com/tip/3548
Glad it’s still out there being seen.
Here are where all the Apollo capsules are currently located.
http://nssdc.gsfc.nasa.gov/planetary/lunar/apolloloc.html