Hmmmm.
Let's say we limit it to people alive and influencial right now.
<scratches head>
Some of the scholars need mention...Stephen Halbrook for one, and weirdly enough I can make a case for Akhil Reed Amar even though he's NOT really on our side...or rather, doesn't want to be, but the data forced him to it. (See also his 1998 book "The Bill Of Rights".)
Kleck. At one point I would have said Lott but...b'gawd, that "Mary Rosh" thing
.
Clayton Cramer. I want to see his "Southern violence and moral reform" book get wider spread...it's *important*, one of the best looks at what cured a "culture of violence" ever.
Other than that...John Ross is a contender.
The 'Nuge, definately.
Alan Gottlieb is in the running.
Brian Judy operates out of the California NRA field office but covers the other western states outside Cali. He was key in switching Alaska to "modified Vermont, optional CCW" last year which was a HUGE win...proof that shall-issue can be a stepping stone to even better was long suspected but having proven it, Brian took a lot of the wind out of the sails of the "hardcore Vermont or bust anti-shall-issue" crowd.
Suzanna Gratia-Hupp, for sure.
Tanya Metaska in FL (NRA). She was critical in switching FL to shall-issue in '87, probably our biggest single win of the last 30+ years as it led to a flood of copycats by putting training straight into the mix. She's *definately* in, and has done good work since though it's damned hard to top THAT.
We've got some key GOP Senators on our side that bear mention. Craig for one.
Until his retirement a few years back, I would have said Don B. Kates Jr.
Kopel for sure.
Vin and Paxton in the writers-with-public-access-beyond-gun-rags department.
This isn't a complete list
.