Lars Brinkhoff suggests that this thread comp.lang.logo with Brian Harvey and Leigh Klotz is required reading:

https://groups.google.com/forum/#!topic/comp.lang.logo/UqOvE...

Just a couple highlights from a detailed history of Logo that Brian and Leigh and others posted:

>From Brian Harvey:

>Many, many people have been involved in the development of Logo.

>Wally Feurzeig started the whole thing by organizing a group at Bolt,
Beranek, and Newman, Inc., to study the educational effects of teaching
kids a programming language. The first language they used, like most
programming languages, was focused on numeric computation, and it was
Wally's idea that kids would find it more natural to work in an area
they knew better, namely natural language; therefore, he set up a team
to design a language featuring words and sentences. Wally made up the
name "Logo."

>The team Wally put together at BBN included Seymour Papert and Dan
Bobrow. The three of them are credited as the designers of the first
version of the language; Dan wrote the first implementation. In a BBN
report dated August, 1967, credit for additional work is given to
Richard Grant, Cynthia Solomon, and Frank Frazier.

>Seymour later started a Logo group at MIT, where Logo development
continued. The MIT versions of Logo were substantially different from
the BBN ones, both in the notations used and in the things the language
could do. Most notably, turtle graphics was added at MIT.

>Among the many people who contributed to the development of Logo at MIT,
at the risk of leaving someone out, are Hal Abelson, Paul Goldenberg,
Dan Watt, Gary Drescher, Steve Hain, Leigh Klotz, Andy diSessa,
Brian Silverman... oh, lots of people.

>I think that most of the early documents are out of print now, but whatever
documentation there is of the early efforts will be in the form of technical
reports from BBN and from MIT. You may have to visit Cambridge to find them!

>From Leight Klotz:

>In the mid 1970's, when the AI Lab Lisp Machine project was just
getting underway, Marvin Minsky and Danny Hillis (later to found
Terrapin, and still later, Thinking Machines) put together a project
to build a Logo machine. It had two components: a PDP-11 processor
(the 3500) and a separate vector-graphics display (the 2500). Guy Montpetit, a Canadian
entrepeneur, funded development eventually, and a company called
General Turtle was formed. General Turtle built and sold the 2500/3500
system. Henry Minsky, then about 12, worked on the design of the
2500, using the Stanford Draw program, one of the early electronics
CAD systems. (The 2500 had this really great barrell shifter stolen
from the Lisp machine design, but it was later found not to work, so
it was never used.) [...]

>[...] Like Brian, I've left out many people who worked on Logo over the
years: Brian Fox and Flavio Rose worked for me at Terrapin on a
contract basis briefly, as did vagabond programmer Devon McCullough
(who used to dial in with a 300 baud modem he'd written in entirely
software using the parallel game port, with an 80-column mixed-case
display done with 3x5 pixel characters; when the modem detected the
call waiting click on the line, it would make the Apple II speaker
make the telephone ringing sound -- a feature which I just saw a US
patent filed on, not by Devon.), and the frustrated Sinclar QX programmer,
who I suspect doesn't want his name used. Of course, there were tons
more people at the AI Lab in the pre-commercial days...

>From Lars Brinkhoff

>Hello,

>I'm mostly researching PDP-10 software, especially MIT's Incompatible Timesharing System.

>I have recently stumbled across some of the LOGO group work. I have a
copy of the Dazzle Dart game that ran on their PDP-11/45. It uses the
Tom Knight vector display controller, so it's not easy to run it.

>Maybe it would be possible to get the original MIT PDP-11 LOGO running.

>[...] It's running now.

>[...] Now also BBN PDP-10 Logo, MIT CLOGO, MIT Lisp Logo, and hopefully soon MIT Apple II Logo (direct ancestor of Terrapin Apple II Logo).