Via Golden Age Cartoons, it appears that a classic Warner Brothers animator may have passed away recently: Warren Batchelder died this past February.
I recall Greg Duffell saying that Batchelder was Virgil Ross's assistant for a number of years, but it took him a long time to be promoted to animator; he finally joined the Bob McKimson unit as an animator in 1958 and stayed there until the studio shut down. Unfortunately I'm not familiar enough with his style to pinpoint which scenes he animated (maybe someone else can help), but if I'm remembering Greg correctly, some of the best animation in those 1958-1964 McKimson cartoons are probably his. Certainly the animation quality of McKimson's cartoons, which had been quite poor ever since he lost his top animators in the mid-'50s, improved quite a bit in 1958, and by the end, his cartoons were probably better-animated than Friz Freleng's. Batchelder deserves a lot of the credit for that, especially since he appears to have become the workhorse of the unit, able to turn out a lot of footage very quickly (again, according to Greg's alt.animation.warner-bros posts from a few years back).