创造者
- Craig T McClellan1
- Craig Wascovich1
- Craydon D McDonald1
- Crump D Laird1
- Curlee Lamont Adams1
- Curtis Wilfred Penney1
- Daniel Hawthorn1
- Daniel M Taylor1
- Darrel R Cory1
- Darryl James Tiller1
- David A Covington1
- David B Watson1
- David E Weaver1
- David H Solberg1
- David J Ohrt1
- David K Sanders1
- David Kyle Foster1
- David N Schaefer1
- David Pretty1
- David R Kupka1