What does “they made bones” mean?

I sent an email to The Company of Watermen and Lightermen in London and asked them if they knew what a "stinker wharf" was and what it might mean to say that "they made bones" there. Susan Fenwick replied

a stinker wharf would have been a tannery (there were many along the Thames) or perhaps a knackery (where they boiled down animal carcasses to make glue, bone meal, etc) and so called because it smelled bad.

So it seems most likely that he meant something like bone meal when he said "they made bones."

As a side note, "make bones" (in the US anyway) can mean making money, and "bones" can refer to dice or dominoes as well. I don't think either one of those fits here.

"Dog and bones" is Cockney slang for telephone. Conceivably, this phrase had been shortened: "they made bones" could be translated as they called (on the phone).

I would translate it as:

Three big wharves have been demolished. One of them we called the stinker wharf. They called and complained because it stunk so much when you went by there.

EDIT

Actually, after a little more thinking, make no bones about is a synonym for to have no objection to. So while my translation is correct, I'm thinking "making bones" about the wharf is just a reversal of the phrase. They objected to the wharf.

More research.

"Elizabeth was thus making huge bones of sending some £7000 over for the general purposes of the government in Ireland." -- Richard Simpson's The School of Shakspere, 1878

I suspect the common meaning of make [no] bones [about it] is irrelevant here, and that he simply meant they boiled bones (to make glue, for example). Having driven past many old glue factories, I can confirm they do indeed pen and ink (stink).

LATER I'm still sure make [no] bones [about it] is irrelevant to OP's quoted usage. As is the well-known rag and bone (phone). But it might be worth pointing out that "bone" is also Cockney rhyming slang for throne (toilet).

I admit it's not obvious to me why a toilet manufacturing plant should "stink". Unless they have exceptionally realistic on-site product testing methods, flushing straight into the Thames.