Archival Research Report DuckDB Datalake Author & Signatory Cartography October 2026

Agile Γ— Craftsmanship:
Authors, Signatories & Network Intersections

Both manifestos were historic declarations of intent. But understanding their relationship requires separating Authors (the drafting circles who convened in 2001 and 2008) from Signatories (the thousands who subsequently endorsed them online). This cartography maps the two movements across 27,601 SCM signatories, 19,090 Agile signatories, and Mike Hall's UGtastic interview archive.

27601
SCM Signatories
9 Summit Authors
19090
Agile Signatories
17 Snowbird Authors
1948
SCM ∩ Agile Signatories
6.7% Crossover Rate
18
The Trifecta
Both Manifestos + UGtastic
39
Craftsmanship First
SCM+UGtastic (Not Agile)

Foundational Taxonomy: Authors vs. Signatories

A common fallacy in software history is conflating the individuals who authored a manifesto with the general public who later signed it. A person can be an author, a signatory, both, or neither:

Agile Manifesto (Feb 2001, Snowbird)
  • 17 Authors: Met in Snowbird, Utah to draft and sign the original statement. Most never entered their names into the subsequent public web form.
  • ~19,090 Signatories: Community members who endorsed the text via agilemanifesto.org over the subsequent two decades.
Software Craftsmanship (Dec 2008 / March 2009)
  • 9 Core Authors/Drafters: Convened at 8th Light in Libertyville, IL (Dec 13, 2008); drafted by Doug Bradbury ("The New Left Side", Feb 2009).
  • 27,601 Signatories: The public ledger where the authors themselves took the first spots (#1 Doug Bradbury, #2 Corey Haines, #3 Paul Pagel, #4 Micah Martin, #5 Robert C. Martin, #6 David Chelimsky).
Identity Case Study

Disambiguating the Two "Dave Thomas" Figures

Two distinct titans of modern software engineering share the name Dave Thomas. Both were recorded by Mike Hall for the UGtastic archive, but their positions in the manifesto ecosystem are entirely different. Conflating them distorts both histories.

Dave "pragdave" Thomas

Agile Author (Snowbird)

Co-author of The Pragmatic Programmer (1999), co-founder of The Pragmatic Bookshelf, and early champion of Ruby and Elixir. One of the 17 original Snowbird authors who created the Agile Manifesto in February 2001. Did not sign via the public web form.

Agile Role: Author Only (Original 17)
SCM Role: Not a Signatory

Dave Thomas (Bedarra / OTI)

Agile Web Signatory

Founder of Object Technology International (OTI, creators of ENVY/Developer and the foundation of Eclipse), founder of Bedarra Research, and YOW! Conference founder. Signed the Agile Manifesto public ledger on page 5 under Bedarra Corp: "Software is built by people supported by tools..."

The 17 Agile Manifesto Authors: Cross-Ecosystem Matrix

How did the 17 Snowbird creators engage with the Software Craftsmanship Manifesto eight years later, and who appeared in Mike Hall's Chicago-era interview archive?

Agile Author SCM Authorship SCM Signatory Rank UGtastic Archive Presence
Kent Beck β€” Not signed Not in archive
Mike Beedle β€” Not signed Not in archive
Arie van Bennekum β€” Not signed Not in archive
Alistair Cockburn β€” Not signed Not in archive
Ward Cunningham β€” Not signed Not in archive
Martin Fowler β€” Not signed Not in archive
James Grenning β€” #411 (Hawthorn Woods, IL, USA) Not in archive
Jim Highsmith β€” Not signed Not in archive
Andrew Hunt β€” Not signed Not in archive
Ron Jeffries β€” #27 (Michigan, USA) πŸŽ™ Visual Thinking in Agile: Chet Hendrickson & Ron Jefferie...
Jon Kern β€” #204 (Quakertown, PA) Not in archive
Brian Marick βœ“ 2008 Summit Author Not signed πŸŽ™ Conference Speaking And Presentation Skills: Mike Hall In...
Robert C. Martin βœ“ 2008 Summit Author #5 (Green Oaks, IL) πŸŽ™ Filling the Vessel: Robert 'Uncle Bob' Martin on the Craf...
Steve Mellor β€” Not signed Not in archive
Ken Schwaber β€” Not signed Not in archive
Jeff Sutherland β€” Not signed Not in archive
Dave "pragdave" Thomas (Pragmatic Programmer) β€” Not signed πŸŽ™ The Power of Unknown Knowns: PragDave Thomas on Intuition...

The 9 Software Craftsmanship Manifesto Authors

Convened at the December 13, 2008 Summit in Libertyville, Illinois (hosted by 8th Light) and formulated in early 2009 by Doug Bradbury. Here is how the SCM founders connect to the Agile Manifesto and UGtastic archive:

SCM Author SCM Signatory # Agile Manifesto Status UGtastic Archive Presence
Doug Bradbury
Co-Author & Principal Synthesizer of Software Craftsmanship Manifesto, SCM Signatory #1.
#1 (Chicago, IL, USA) Not signed Not in archive
Robert C. Martin (Uncle Bob)
Co-Author of Agile Manifesto (Snowbird 2001), Organizer of 2008 SCM Summit, SCM Signatory #5.
#5 (Green Oaks, IL) βœ“ Agile Author (Snowbird) πŸŽ™ Filling the Vessel: Robert 'Uncle Bob' Martin on the Craf...
Micah Martin
8th Light Founder, Host of 2008 SCM Summit, SCM Signatory #4 (and #6648), Agile Manifesto Signatory, interviewed at SCNA 2013.
#4 (Libertyville, IL) #6648 (Charleston, SC) βœ“ Agile Signatory πŸŽ™ Community Building And User-group Organizing: Mike Hall I...
Paul Pagel
8th Light CEO, Host of 2008 SCM Summit, SCM Signatory #3.
#3 (Chicago, IL, USA) Not signed Not in archive
Corey Haines
Organizer of 2008 SCM Summit, SCM Signatory #2, founder of Global Day of Coderetreat, interviewed twice in UGtastic.
#2 (Cleveland, OH) Not signed πŸŽ™ Cranking Design to 11: Corey Haines on the Global Day of ... πŸŽ™ Fun with Lambdas: A Lambda Calculus Journey | GOTO Confer...
Dave Hoover
Obtiva Founder, Participant in 2008 SCM Summit, SCM Signatory #15, Agile Manifesto Signatory, interviewed in UGtastic.
#15 (Chicago, IL, USA) βœ“ Agile Signatory πŸŽ™ The Apprenticeship Move: Dave Hoover on GeekFest and Deve...
Michael Norton
Participant in 2008 SCM Summit, SCM Signatory #2299, Agile Manifesto Signatory, interviewed at SCNA 2011.
#2299 (Wadsworth, OH) βœ“ Agile Signatory πŸŽ™ Cleveland & Pittsburgh Community: Mike Hall Interviews Mi...
David Chelimsky
Lead maintainer of RSpec, Participant in 2008 SCM Summit, SCM Signatory #6.
#6 (Chicago, IL) Not signed Not in archive
Brian Marick
Co-Author of Agile Manifesto (Snowbird 2001), participant in 2008 SCM Summit, interviewed at SCNA 2012.
β€” βœ“ Agile Author (Snowbird) πŸŽ™ Conference Speaking And Presentation Skills: Mike Hall In...

The Trifecta: Signed Both Manifestos & In UGtastic Archive

These practitioners signed both the Agile Manifesto and Software Craftsmanship Manifesto, and were recorded in Mike Hall's archive. Notice the pronounced low-signatory skew: almost all signed SCM during the 2009–2010 founding era.

Micah Martin SCM #4
πŸ“ Libertyville, IL
βœ“ Agile Manifesto signatory
Dave Hoover SCM #15
πŸ“ Chicago, IL, USA
βœ“ Agile Manifesto signatory
Zach Dennis SCM #24
πŸ“ Grand Rapids, MI
βœ“ Agile Manifesto signatory
Cory Foy SCM #31
πŸ“ Tampa, FL
βœ“ Agile Manifesto signatory
Hadi Hariri SCM #279
πŸ“ Malaga, Spain
βœ“ Agile Manifesto signatory
Dean Wampler SCM #352
πŸ“ Chicago, IL
βœ“ Agile Manifesto signatory
James Edward Gray II SCM #462
πŸ“ Edmond, OK
βœ“ Agile Manifesto signatory
Chet Hendrickson SCM #534
πŸ“ Farmington Hill, MI, USA
βœ“ Agile Manifesto signatory
Ken Auer SCM #557
πŸ“ Holly Springs, NC
βœ“ Agile Manifesto signatory
Carl Erickson SCM #2026
πŸ“ Grand Rapids, MI, USA
βœ“ Agile Manifesto signatory
Michael Norton SCM #2299
πŸ“ Wadsworth, OH
βœ“ Agile Manifesto signatory
Mike Clement SCM #4520
πŸ“ Orem, UT
βœ“ Agile Manifesto signatory
Dustin Updyke SCM #4810
πŸ“ Pittsburgh, PA
βœ“ Agile Manifesto signatory
Carlos Roberto V. da Silva SCM #6194
πŸ“ BrasΓ­lia, Brasil, DF
βœ“ Agile Manifesto signatory
Carlos Antonio Matias da Silva SCM #13359
πŸ“ Brasil
βœ“ Agile Manifesto signatory
Carlos Silva SCM #15289
πŸ“ Oporto, Portugal
βœ“ Agile Manifesto signatory
Carlos CorrΓͺa da Silva SCM #16854
πŸ“ Porto Alegre / RS - Brazil
βœ“ Agile Manifesto signatory
Carlos Manique Silva SCM #25030
πŸ“ Portugal
βœ“ Agile Manifesto signatory

Craftsmanship First: SCM Signatories Who Did Not Sign Agile

39 UGtastic interviewees appear in the SCM datalake but did not sign the Agile Manifesto web form. This cohort represents the developers whose primary alignment was with the Craftsmanship movement rather than Agile orthodoxy.

SCM # Name Location UGtastic Interview
#2 Corey Haines Cleveland, OH πŸŽ™ Cranking Design to 11: Corey Haines on the Global Day of Code ...
#5 Robert C. Martin (Uncle Bob) Green Oaks, IL πŸŽ™ Filling the Vessel: Robert 'Uncle Bob' Martin on the Craft of ...
#16 Colin Jones Mundelein, IL πŸŽ™ Developer Education And Learning: Mike Hall Interviews Colin J...
#35 Gary Bernhardt Cleveland, OH πŸŽ™ Conference Speaking And Presentation Skills: Mike Hall Intervi...
#49 Bobby Johnson Olympia, WA πŸŽ™ South Sound .net: Mike Hall Interviews Bobby Johnson | SCNA 2011
#110 Obie Fernandez Jacksonville, FL πŸŽ™ The Rails Way And Consulting Practice: Mike Hall Interviews Ob...
#141 Adewale Oshineye London, United Kingdom πŸŽ™ Mike Hall Interviews Adewale Oshineye on Software Craftsmanshi...
#177 Justin Searls Columbus, OH πŸŽ™ Community Building And User-group Organizing: Mike Hall Interv...
#207 Tim Ottinger Illinois πŸŽ™ Software Craftsmanship And Practice: Mike Hall Interviews Tim ...
#223 Ethan Gunderson Wisconsin πŸŽ™ The Frictionless Web: Gathers.us and the Reality of 2012 NoSQL
#232 Evan David Light Ocean Pines, MD πŸŽ™ Conference Speaking And Presentation Skills: Mike Hall Intervi...
#349 Aaron Bedra Chapel Hill, NC πŸŽ™ Directed Practice: Aaron Bedra on Clojure Koans, Technical Wri...
#405 Charley Baker Denver, CO πŸŽ™ Developer Community And Conference Conversations: Mike Hall In...
#533 Matt Polito Elgin, IL πŸŽ™ Community Building And User-group Organizing: Mike Hall Interv...
#569 Mark Simpson Cambridge, MA πŸŽ™ Community Building And User-group Organizing: Mike Hall Interv...
#592 Sergio Pereira Grayslake, IL πŸŽ™ Chicago Alt.net: Mike Hall Interviews Sergio Pereira | SCNA 2011
#735 Stephen Anderson Madison, WI, USA πŸŽ™ Developer Community And Conference Conversations: Mike Hall In...
#853 Leon Gersing (fallenrogue) Dayton, OH πŸŽ™ Conference Speaking And Presentation Skills: Mike Hall Intervi...
#1094 David Dickinson South Bend, IN πŸŽ™ Developer Community And Conference Conversations: Mike Hall In...
#1144 Andrea Magnorsky Dublin, Ireland πŸŽ™ From Prototypes to Podcasts: Andrea Magnorsky on Game Jams, Al...
#2924 Jerry Cattell Chicago, IL πŸŽ™ Chicago Devops Community Organizing: Mike Hall Interviews Jerr...
#3882 JC Grubbs Chicago, IL πŸŽ™ Web Development And Frontend Practice: Mike Hall Interviews JC...
#4025 Ola Bini Stockholm, Sweden πŸŽ™ Conference Speaking And Presentation Skills: Mike Hall Intervi...
#4184 Steve Kim Los Angeles, CA πŸŽ™ Chicago Software Craftsmanship: Mike Hall Interviews Steve Kim
#4788 Sandro Mancuso London, UK πŸŽ™ Developer Community And Conference Conversations: Mike Hall In...
#5717 Brad Wilkening Chicago, IL πŸŽ™ Conference Speaking And Presentation Skills: Mike Hall Intervi...
#6043 Anna Lear Waterloo, ON πŸŽ™ Developer Community And Conference Conversations: Mike Hall In...
#6046 Ryan Gerry McHenry, IL πŸŽ™ Community Building And User-group Organizing: Mike Hall Interv...
#6556 Rafael MendonΓ§a FranΓ§a Brazil πŸŽ™ Ruby Hero Recognition And Community: Mike Hall Interviews Rafa...
#6875 Mike Lee San Antonio, TX πŸŽ™ Developer Community And Conference Conversations: Mike Hall In...
#7586 Ross Beehler South Bend, IN πŸŽ™ Developer Community And Conference Conversations: Mike Hall In...
#7942 Drew Shefman Houston, TX, USA πŸŽ™ Houston Adobe User Group: Mike Hall Interviews Drew Shefman | ...
#8274 Mike Jansen Chicago, IL πŸŽ™ Developer Education And Learning: Mike Hall Interviews Mike Ja...
#8489 Eric MacAdie Chicago, Illinois πŸŽ™ Ruby And Rails Practice: Mike Hall Interviews Eric MacAdie | W...
#9515 Sarah Gray Chicago, IL πŸŽ™ Conference Speaking And Presentation Skills: Mike Hall Intervi...
#10472 Paul Baker Salt Lake City, Utah πŸŽ™ Developer Education And Learning: Mike Hall Interviews Paul Baker
#13178 Tony Chicago πŸŽ™ Refresh Chicago: Mike Hall Interviews John
#17909 James R. Davis III Portland, ME πŸŽ™ Ruby And Rails Practice: Mike Hall Interviews James Edward Gre...
#19366 John South Africa πŸŽ™ Refresh Chicago: Mike Hall Interviews John
Pipeline Automation & Tooling

This dataset is compiled dynamically using bin/build_manifesto_network.rb in the repository root. It executes full-table extraction against the local DuckDB datalake, applies name variant expansion and disambiguation filters, strips Mojibake / control codes, and outputs Psych-validated JSON to _data/research/agile_scm_intersection.json.

$ ruby bin/build_manifesto_network.rb
Navigational Directory β€’ Living Research Corpus

Software Craftsmanship & Chicago Oral History

Archival Lead: Mike Hall (Signatory #106 β€’ SCMC Co-Founder β€’ UGtastic)
πŸ™οΈ Monograph & Origins
πŸ” Forensics & Datalake
πŸ›οΈ Living History & Community
πŸ€– Philosophy & Age of AI