CHAD,SHARD&CHARRED in NYC speech?

[RonButters at AOL.COM]

In a message dated 11/21/2000 1:27:40 PM, laurence.horn at YALE.EDU writes:

<< >gee, I always thought that a CHAD was just a little SHARD of paper with
the
>vowel+R pronounced in the New York way

Boston would be a bit closer... >>

True, though in 1947 NYC was even more of an r-dropping region than it is
now. But wouldn't SHARD even today bew pronounced (variably) as r-less and
with a fronted and raised vowel in working-class white neighborhoods in NYC?
So that CHARRED and SHARD would be virtually the same, and the same as CHAD
except for the absence of the initial brief [t] in SHARD?