In one week, as part of the Hall of Fame’s Memorial Day Weekend, Doc Adams’ handwritten “Laws of Base Ball” debuted in the Taking the Field exhibit.

The “Laws of Base Ball” will be on long-term loan and on display in the National Hall of Fame in Cooperstown, NY thanks to their owner, Hayden Trubitt. The documents have been described by the Hall of Fame as follows:

The rules of baseball are engrained in the American culture to a magnitude unlike those of almost any other game. But those regulations changed repeatedly as they coalesced in the national consciousness.

Beginning Memorial Day Weekend, visitors to the National Baseball Hall of Fame and Museum in Cooperstown will have a first-hand look at an important part of that evolution.

On loan from baseball fan Hayden Trubitt, drafts of rules penned circa 1857 by the Knickerbocker Base Ball Club will be on display in the Museum’s Taking The Field exhibit. The handwritten documents, originally submitted as part of a convention called to codify the rules of the emerging National Pastime, address topics still relevant to today’s game, such as player movement from team to team and gambling.

These proposed rules, later amended and approved at the convention, also addressed the length of games, formalized nine players to a side and clarified regulations that were unaddressed in earlier rule books.

These documents, which will be exhibited in a special case designed to preserve their structural integrity, will be formally unveiled on Friday, May 22, as part of the Hall of Fame’s Memorial Day celebration of America’s 250th birthday.

Memories and Dreams, Spring 2026 Volume 48 Issue 1

On loan from baseball fan Hayden Trubitt, drafts of rules penned circa 1857 by the Knickerbocker Base Ball Club will be on display in the Museum’s Taking The Field exhibit. Submitted as part of a convention called to codify rules of the emerging national pastime, the handwritten documents address topics still relevant to today’s game such as player movement from team to team and gambling.

These proposed rules, later amended and approved at the convention, also addressed the length of games, formalized nine players to a side, and clarified regulations that were left unaddressed in earlier rule books.

“Groundbreaking ‘Rules of Base Ball’ Documents Debut This Spring at Museum”, Baseball Hall.org, January 14, 2026

High praise for the documents but surprisingly no mention of the documents’ authors, Daniel Lucius ‘Doc’ Adams and William Grenelle with the Hall of Fame opting to refer to the author as the Knickerbocker Base Ball Club. One can only hope that the exhibit will tell the full story and give credit where credit is due.

This is the third time that the “Laws of Base Ball” have been displayed to the public. The first two times the documents were showcased, so was Doc Adams and his role.

The initial time was in 2016 at the Oregon Historical Society.

… the content of the documents thoroughly change the early history of baseball by naming Daniel “Doc” Adams the proper father of the modern game, not the often mis-credited Abner Doubleday.Oregon Historical Society to Host First Public Exhibit of “The Magna Carta of Baseball”, Oregon Historical Society

The documents, which make a strong case for New York Knickerbocker player and president Daniel “Doc” Adams being the game’s true patriarch, initially went to auction in 1999.“Baseball’s Magna Carta”, The Historian – Member Newsletter for the Oregon Historical Society

Adams has been considered one of the pioneers of the game for many years, but the discovery of his “Laws of Base Ball” could put him at the top of the pile. (Perry, 2016)“Oregon Historical Society lands first-ever display of recently discovered ‘Magna Carta of baseball'”, The Oregonian/OregonLive, Douglas Perry

In 2018, they were part of the Baseball Americana exhibit at the Library of Congress in Washington, D.C.

Daniel Lucius “Doc” Adams was the guiding force; William Henry Grenelle rendered his teammate’s draft into the document that, in fine Spencerian Script, was placed before the first convention of baseball clubs. Adams and Grenelle were two of the three Knickerbocker Club delegates to that gathering; the third was Louis Fenn Wadsworth, to me an especially fascinating character.

…

Great documents are the products of great men, whose contributions — even their identities — may be erased from mainstream history. Until recently, that had been the fate of “Doc” Adams, who more than anyone reshaped his club’s primitive 1845 rules to become the game that would endure.”The Laws of Baseball … and the “Unchanging Game”, Our Game, John Thorn