Bumble the Beadle
Interesting resource on Oliver! includes information I didn't know about Victorian society and such.
I'm mainly interested in a precise answer to exactly what is a "beadle." He's a lay church functionary, responsible for order during services - but there are no services in this play. So he's also responsible for church properties etc. I'm gathering that he goes around to church properties and gives them moneys for the food, that kind of thing. But I don't really know.
UPDATE: Here is another excellent resource, very colorfully done. Better than the PDF above.