- "ACTOR" -- "A universal modular ACTOR formalism for artificial intelligence" by Hewitt
- "APROL" -- Holmes, Dennis and John E Howland "APROL A Hybrid Language"
- "Basic PDP-1 Lisp" by L. Peter Deutsh (1963) -- paper
- "Bibop" -- https://www.saildart.org/BIBOP.RPG[UP,DOC]4
- "Black" -- "The Reflective Language Black"
- "Brenda" -- a learning subset of Dylan, some information at https://www.cs.cornell.edu/courses/cs212/1998sp/psets/ps6/ps6.html
- "ByteLisp" -- Deutsch, L. Peter "ByteLisp and its Alto implementation"
- "COMIT" -- Yngve, Victor "A programming language for mechanical translation" Mechanical Translation 4, 3 (Dec. 1957), 59-65.
- "CONVERT" -- Guzman, "CONVERT-Design of a language for symbol manipulation, and its corresponding interpreter"
- "Cromemco Lisp" -- manual
- "Fugue" -- Dannenberg, Fraley, and Velikonja, ``Fugue: A Functional Language for Sound Synthesis,'' Computer, 24(7) 1991, pp. 36-41.
- "GM" -- (Graham Machine) Gilmore, P.C. (1963) Gilmore, P.C. "An Abstract Computer with a LISP-Like Language Without a Label Operator"
- "GOL" -- Pople, Harry E, Jr. "GOL: A Goal Oriented Language for the Computer" PhD Thesis, Carnegie-Mellon University, 1969
- "GTL" -- Georgia Tech Language https://mcjones.org/dustydecks/archives/2018/06/04/1001/
- "Kernel" -- "Fexprs as the basis of Lisp function application or $vau : the ultimate abstraction" by John N. Shutt
- "LISP F3" -- paper
- "LISP" by John McCarthy (1959) "Recursive Functions of Symbolic Expressions and their Computation by Machine" MIT AI Lab., AI Memo No. 8, Cambridge.
- "LISP 1.55" -- "Stanford export version of LISP 1.5" -- http://www.softwarepreservation.org/projects/LISP/imperial_college/Campbell-Imperial_College_LISP_Prog_Guide.pdf
- "LISP 2" -- Abrahams, P.W. "The Lisp 2 Programming Language and System." (1966) [AFIPS] Proceedings of the 1966 Fall Joint Computer Conference FJCC 29
- "LISP A" -- Sandewall, E.J. "LISP A: A LISP-like System for Incremental Computing"
- "METEOR" -- Bobrow, 1964 "METEOR: A LISP Interpreter for String Transformations"
- "Oaklisp" -- Lang K. et al, (1986) Lang K. et al, "Oaklisp: An Object-Oriented Scheme with First-Class Types"
- "PDP-6 Lisp" -- https://www.dreamsongs.com/Files/Hopl2.pdf
- "PLANNER" -- Hewitt, Carl "PLANNER: A Language for Proving Theorems in Robots"
- "R7RS-?" -- https://bitbucket.org/cowan/r7rs-wg1-infra/src/default/R7RSHomePage.md
- "Reflection and Sentantics in Lisp" by Brian Cantwell Smith (describes 2-Lisp and 3-Lisp)
- "RScheme" -- "RbCl: A Reflective Object-Oriented Concurrent Language without a Run-time Kernel"
- "Scheme 48" -- https://web.archive.org/web/20110402001244/https://scsh.net/docu/s48-manual/s48manual.html
- "Scheme 84" -- "Scheme 84 Interim Reference Manual" by Friedman, Wand, et al.
- "SXM" -- http://www.malgil.com/sxm/
- "T" -- "T: a dialect of Lisp or LAMBDA: The ultimate software tool" by Rees and Adams
- "TELOS" -- Kramer, Bryan M. et al "Implementing Telos"
- "The New Language" by Timothy Hart "The New Compiler" M.I.T., A.I. Project, A.I.MEMO 39, Cambridge, 1962
- "The New Language" by M. Levin "Syntax of the New Language", M.I.T., Proj. MAC, MAC-M-158, A.I. Project, A.I.MEMO 68, Cambridge, 1964
- "TREET" -- Haines, E. C., Jr., The TREET List Processing Language, MITRE Corp., Information System Language Studies Number Eight SR-133
- "XLISP-PLUS" -- https://almy.us/xlisp.html
- "XLISP-STAT" -- http://homepage.divms.uiowa.edu/~luke/xls/xlsinfo/xlsinfo.html & http://www.edm2.com/index.php/XLISP-STAT
- "youtoo" -- http://www.cs.bath.ac.uk/~jap/ak1/youtoo/youtoo.html
- "Zetalisp" -- Chinual, 4th Ed. http://www.bitsavers.org/pdf/mit/cadr/chinual_4thEd_Jul81.pdf
"SAO Forth" -- (Smithsonian Astrophysical Observatory) -- an early interpreter written in Fortran with a handful of words (WORD NUMBER INTERPRET ABORT) https://www.red-gate.com/simple-talk/opinion/geek-of-the-week/chuck-moore-geek-of-the-week/ "SLAC Forth" -- (Stanford Linear Accelerator Center) -- a more-Forth-like experience with core words and a stack https://colorforth.github.io/HOPL.html "RSI B5500 Forth" -- (Realtime Systems, Inc) "NRAO IBM 360 Forth" -- (National Radio Astronomy Observatory) "Forth Inc. Forth" -- https://www.forth.com/resources/forth-programming-language/
- One day I'd like to do a different view of these trees but with creators integrated.