I pointed to the relavant web pages and a recent article at:
http://www.nj.com/sports/ledger/index.ssf?/base/columns-0/109825501150320.xml
http://www.ncaa-baseball.com/sabr/database/schools/ithacany.htm
http://www.ithaca.edu/bombers/base/

I don't see his name on the website, but the following news story makes a
reference to him attending Ithaca before beginning his pro baseball career.
My records indicate that he was signed as a non-drafted amateur free agent
by the Braves in 1966.
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In a message dated 10/21/2004, jwmills@... replied:

Earl attended Ithaca College during the offseason, but did not play baseball
while there. According to Rick, he reported to the Braves late -- after the
Spring Semester ended.

Are you sure that he was an undrafted free agent? I've seen the following
entry for him (source is TheBaseballCube.com): Selected by Milwaukee Braves in
1st Round (6th Overall) of 1965 amateur draft. (Aug-Leg Phase)

--Jeremy Mills
Co-Chairman, SABR Collegiate Committee
jwmills@...
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Rod again:
So, rather than a correction on the Collegiate database, it appears that
it's the official transactions data that should be revised. I'll buy that on
his collegiate experience, and it probably explains the descrepancy in
information regarding that first draft. It would seem that Williams was
selected (as
a pitcher) but did not sign, chosing to attend school for a year and later
signing with John "Honey" Russell for the Braves. It's likely that he did so
before the 1966 June draft while the Braves still owned his draft rights.

His name is not listed in W.C. Madden's "Baseball's First-Year Player Draft"
McFarland 2001 on pg 298, as it probably should. Per Tom Ruane, Retrosheet
Transactions guru, Williams was signed in 1966, and the database doesn't list
a record for the Drafted-Not Signed transaction, but neither does it list
him as a (late) signing from the 1965 draft. The draft rules in 1966 allowed
for a special secondary phase offering teams those players who had been
previously selected in the draft, but hadn't signed and were newly eligible. My
guess is that he came to terms before that draft. The following year brought
a change in the rules for the regular phase, in that teams could no longer
draft an undergraduate players (freshman or sophomore) from a four-year
university.

Thanks for your time.

Rod Nelson