Congrats 21 Guns, you baited me into doing some research on the topic of past JR world teams. I thought I'd list the JR world teams from 2006-2015 to provide some further statistics for you to analyze.
**Also, Jesse Thielke was never a member of a JR world Freestyle team, he was always a Greco guy, at least when it pertained to JR World teams.
(All weights will be listed in order from 50KG to HWT)
KEY
# = JR World Champ
* = NCAA Champ
2006
Patrick McCaffrey
Henry Cejudo
*Coleman Scott
*Brent Metcalf
Matt Coughlin
Louis Caputo
*Max Askren
Erik Nye
2007
*David Taylor
Tyler Graff
*Angel Escobedo
*#Bubba Jenkins
Jake Kerr
Louis Caputo
Taylor Moore
Stafan Tighe
2008
Mark Rappo
Zach Sanders
Tyler Graff
*Jordan Burroughs
*Quentin Wright
Kirk Smith
Clayton Foster
Clayton Jack
2009
Carson Kuhn
*Tony Ramos
*Jordan Oliver
Jason Chamberlain
*Andrew Howe
*Chris Perry
Tyrell Fortune
#Dom Bradley
2010
Nick Roberts
Cory Finch
*Matt McDonough
Jason Chamberlain
Conrad Polz
*Chris Perry
Tyler Lehmann
Jeremy Johnson
2011
Nick Roberts
Mark Grey
*Logan Stieber
Josh Kindig
Taylor Massa
Lee Munster
Tanner Hall
Daniel Miller
2012
Adrian Cordova
Joey Dance
Earl Hall
Destin McCauley
*Alex Dieringer
Pat Downey
Tanner Hall
Austin Marsden
2013
Ethan Lizak
Thomas Gilman
Mark Grey
*Jason Tsirtsis
*Alex Dieringer
Sammy Brooks
*#Kyle Snyder
Austin Marsden
2014
Jabari Moody
Thomas Gilman
Joey McKenna
Aaron Pico
Anthony Valencia
*Gabe Dean
*#Kyle Snyder
Adam Coon
2015
#Spencer Lee
Stevan Micic
Joey McKenna
Aaron Pico
Mark Hall
Zahid Valencia
Anthony Cassar
Nathan Butler
If anybody sees some mistakes, let me know and I'll correct them