Angell is. I just meant he and Gammons (if not Boswell who doesn't seem important today) were more important than Stark in my book (Allan Lewis, who's been in for ages, probably was too. And the disgraced child molester wasn't chopped liver. All Philly guys).
Surprised about Boswell. Part of it is the the award didn't start until 1962 so it took them 30+ years to get all the old-timers in, and then you had another generation in their 60s and 70s getting honored first. I also suspect maybe Boswell isn't chummy with the BBWAA. He was way more famous than most at his peak, and was more of the lofty "columnist" than the revered and romanticized beat guy. In part because he didn't have a team to cover as you note. Like, Paul Hagen is in and that seems the epitome of the type of guy his peers would favor.
(Irrelevant to Boswell's case but I rarely think to read him now, a bit too old-school and doesn't really stand apart from other columnists to me these days.)