Thread:GrayWolf2/@comment-43914741-20200216173201/@comment-5394363-20200216213941

Here are some sites that might confirm something though. They may not be primary but they're the most primary ones I could find.

https://tvtropes.org/pmwiki/pmwiki.php/Characters/OliverAndCompany

http://www.animationsensations.com/bill-sykes-fagin-oliver

https://www.eonline.com/news/541908/all-of-the-disney-villains-ranked

I also get the exact same character when I google "Bill Sykes Disney" so I think that might be quite decent enough confirmation his first name is Bill.

https://www.google.com/search?client=safari&rls=en&q=bill+sykes+disney&ie=UTF-8&oe=UTF-8