See the thread on the Exchanges page.
Here is a link that might be useful: Ft Worth Trinity Park Plant Swap Saturday 4-30-2011
Ft Worth Trinity Park Swap April 30 2011 Haves & Wants
Ft Worth April 7, Trinity Park - need info.
HAVE: Ft Worth Spring Swap Trinity Park April 18
Ft Worth Autumn Fall Swap October 15 2016 Saturday Trinity Park