The AKC judging directory only goes back to 1998. I went to see how many Linda Erwin has judged. Since 1998, Linda has judged 22 stakes. (1 or 2 a year). I don't know how much judging she did prior to 1998. She may not qualify under the 40+ judging points criteria. She certainly qualifies for the rest.
Other than Arnie or Linda Erwin, I am scratching my head trying to come up with others.
PS - Robin Gulvin has judged 41 (major and minor) stakes since 1998.