One Piece - Volume 59

Libraries having One Piece
Oda forgetting to draw Garp's scar 25 times
Nounai Makering Luffy's brain (god that was a stupid fad)
Mocked up zodiac nonsense
Oda loves Bob Dylan
A fan decides Law's b-day as 10/6 and Oda says that's fine
A fan decides Teach's b-day as 8/3 and Oda says yeah whatever
A fan decides Marco's b-day as 10/5 and Oda says whatever sure
A fan decides Croc's b-day as 9/6 and Oda says HEEEEHAAAAW sure whatever
A fan decides Ivankov's b-day as 1/8 and Oda says HEEEHAAAWW!
A fan decides Akainu b-day 9/21 because it's Matsuda Yuusaku's b-day, Kizaru as 11/23 for Tanaka Kunie, and Akainu as 8/16 for Sugawara Bunta, and Oda says WHATEVER I DON'T CARE HEEEHAW!
Oda isn't involved in the Nami pillow, and says he finds out about merchandise like that by reading Jump. He looks forward to seeing new P.O.P figures all the time.
Oda uses three different screentone types on the manga
Fan "HEY ALL THE SH DEVIL FRUITS ARE NUMBERS (5656, 8787, etc) DOZ DIS MEAN KUMA (2929) GONNA JOIN?"
Oda "Whaat!? Wow, that's surprising. In what way am I supprised you say? No comment!"
Oda confirms the news about successful sex change experiment of eels using hormons was in fact done by Ivankov himself. HEEEEHAW
No seiyuu SBS this time. Next up, Yamaguchi Miyuko of Robin and Yao Kazuki of Franky coming up.

Whitebeard pirates commanders are not necessary numbered in the order of their strength!
They are equal to each other, and younger number does not necessary mean they are stronger or have more authority.
The 43 allied pirates of WB are, obviously, not part of the WB crew. They however respect Whitebeard, and in the case of need they gather to help.
Ace's case is a little different, since his entire pirate crew was merged into Whitebeard pirates.