My guesses
A - Cedar
B - Buckeye
C - cocobolo (just a guess, looks to be waxed, will probably be able to tell better after turning)
D - ?
E - Yellowheart (just a guess, looks to be waxed, will probably be able to tell better after turning)
F - Spalted hickory (heavily spalted woods can be difficult, so this is just a guess)
G - Buckeye
H - box elder burl
I - bloodwood (possibly padauk if it is more of a burnt orange color when you turn. bloodwood will maintain a red color)
J - ?
K - oak of some type, white?
L - ?
M - purpleheart
N - looks similar to bottlebrush that I got from
@robutacion
O - Flame Box Elder (the "flame" notation just means that it has red streaks)
P - ?
Q - ?
R - ?
S - Osage Orange (see puzzle #1 from the 2020 BASH)
T - ?
U - ?
V - ?
W - Ebony (gabon, etc. there are several species, all are pretty black. Possibly african blackwood.)