Shortly before his death in 2010, Morris Cohen told me about a book he was writing with his Yale colleague John Nann on research in American legal history. I wondered at the time if this was mostly a means of keeping Morris engaged in work and might not amount to much. But lo and behold, eight years later The Yale Law School Guide to Research in American Legal History (Yale University Press, 2018) has landed on my desk. And it’s full of great insights for the legal historian.

Instead of divisions by material type or genre, most of the book’s chapters focus on distinct time periods in American history and highlight research approaches and resources most pertinent to each period. After the chronological chapters, the book closes with several more general chapters. Particularly useful here are the discussion in Chapter Eight on doing archival research and the treatment in Chapter Ten of historical legal dictionaries.

A very useful bibliography of additional readings accompanies each chapter, and the book has a thorough and precise index. The authors provide helpful tips throughout on finding material in online catalogs, a nice touch as new catalog interfaces make subject searching less accessible and intuitive.

Chapter 2, English Foundations of American Law, 1500s-1776, does a great job of setting us in the world of an early modern English lawyer, finding case law with abridgments rather than Lexis or Westlaw. Lord Coke’s list of the fifteen sources of the law, printed at pages 50-51, is a wonderful time capsule – I didn’t know that “the Law and priviledge of the Stanneries” was a distinct source of law, let along what a stannary was. And it is interesting to learn that the abridgements of the 17th century (Sheppard, Hughes, and Rolle) were “considered to be of mediocre to poor quality” especially compared to Brooke’s Graunde Abridgement of the late 16th century. Nann and Cohen’s Guide has great explanations of the role of the Privy Council in governing the colonies and of the Calendar of State Papers. The authors point out the dangers of hastily OCR’d digital resources — unless scanned material is proofread carefully, it’s simply not discoverable through keyword searches.

Chapter 5, The Early Republic, 1790s-1870s, warns that researchers “must be careful to understand what the judiciary looked like in the state and time being researched. They must also understand the appellate process of the time.” And the authors provide good insight as to why historians can often be frustrated finding information in court reports: “Historians will find that it was not uncommon for a historically significant lower court case to go unreported. Once judges gained control of reporting, they chose cases that would become the building blocks of the law and ignored cases that merely repeated well-settled law. Historians will often want to read a case to get insight into the people involved, whereas lawyers care only about the law involved.”

Throughout the book I learned of valuable resources in legal history. These include Neil H. Cogan, The Complete Reconstruction Amendments, a forthcoming six-volume set from Oxford University Press not even on the publisher’s website yet, but also resources I never knew about or had long forgotten. I’d better take another look at American Foreign Relations Since 1600: A Guide to the Literature, which “has been described as ‘magisterial’ and is an extremely important resource that should be among the first stops in a research project touching on this topic.” And I never knew about Clarence S. Bingham’s History and Bibliography of American Newspapers, 1690-1820, “a critically important introduction to early American newspapers.”

At page 149, I read about two microfilm resources that were unknown to me until I had to hunt them both down in recent months:  Dockets of the U.S. Supreme Court, 1790-1950, and Appellate Case Files from the Supreme Court of the United States, 1792-1831. It’s true that finding these and borrowing the microfilm (sadly, we have neither in our library) gave me a sense of accomplishment, but how much easier life would have been if I had Nann & Cohen to help me. (It seems odd in 2018 to be relying on microfilm, particularly for information about Supreme Court cases, and LLMC is currently considering digitization of both of these sets.)

One of the valuable things about the work is that it expresses strong and clear opinions. In the very first chapter, it says that William H. Manz’s Gibson’s New York Legal Research Guide is perhaps the best of the many state legal research guides now published, with its in-depth treatment and coverage of current and historical sources. (Who can argue, when guides for nine states in Carolina Academic Press’s Legal Research Series all begin with the exact same sentence, “The fundamentals of legal research are the same in every American jurisdiction, though the details vary,” and nine more offer paraphrased versions of the same idea? How refreshing to open Hollee Schwartz Temple’s West Virginia Legal Research (2013) in the same series and read its first line, “If you want to stand out in a challenging legal marketplace, develop superior research skills.” Here’s to authors with journalism backgrounds!)

Of course, I don’t agree with all of the authors’ opinions. I don’t know why researchers trying to decipher citations are told that Prince’s Dictionary of Legal Abbreviations “is the first place they should turn to” and then only to check the online Cardiff Index to Legal Abbreviations if a citation isn’t in Prince’s. Cardiff’s coverage of American sources is broad and thorough, it includes useful information like the period of coverage and preceding and subsequent titles in a series, and its web version is so convenient. Why not reverse the order of checking these two?

As explained in the guide’s Introduction, the chronological chapters “describe the research tools available to an attorney of the past as well as the tools that a researcher of today will use to find the law of the past.” Thus, Chapter Six, Research Gets Organized, 1880s-1930s, explains the laborious procedure required to use Shepard’s Citations in print, something I thought I might never to have to read about again. I had hoped for less focus on obsolete research approaches and more discussion of modern legal history resources. There is only passing reference to one chapter of the three-volume Cambridge History of Law in America, and Lawrence Friedman’s History of American Law is only cited in one chapter’s bibliography. These books are not just “Further Reading” but great places for legal history students to begin their research and place their ideas in historical context.

The chronological structure of the guide begins to falter in Chapter Five, The Early Republic, 1790s-1870s, when the authors devote nearly a page to explaining PACER, the federal courts’ online docket system. Why in this chapter is there a discussion of a resource that begins its coverage in the late 20th century? Similarly, the chapter on the 1880s-1930s includes coverage of modern tools such as the Current Law Index (1980-date), and Chapter Seven, The Administrative State, 1930s-2010s, discusses several valuable 18th- and 19th-century resources such as Public Documents of the First Fourteen Congresses, 1789-1817 and Documentary History of the Constitution of the United States, 1786-1870. The “Administrative State” chapter focuses on administrative law and government documents, but the dates in its title are misleading.

The authors acknowledge that “research guides, including this one, represent a snapshot in time,” but in this instance the snapshot isn’t always that close to the publication date. Parts of the book show the inherent dangers of working on a project for several years. The bibliographies, while valuable, miss several recent publications, including a 2016 edition of Morris Cohen’s own Legal Research in a Nutshell. The print Foreign Law Guide hasn’t been updated since 2007, and the online Guide to Reference closed down in March 2016. In discussing the Congressional Record, the book asserts that “No easy translation tables exist to take researchers from the ‘daily’ page numbers to the ‘final’ page numbers or vice versa” – yet both HeinOnline and ProQuest Congressional offer daily edition to bound edition cross-reference tools. An unrelated quibble (in which I have a vested interest) is that referring to Specialized Legal Research as “by Penny A. Hazelton” and Guide to Reference Books as “by Robert Balay” does a disservice to the numerous contributors to these edited works.

In sum, The Yale Law School Guide to Research in American Legal History is a welcome addition to the literature of legal research and a valuable trove of insights and tips. It goes a long way to bridging the divide between historians and legal scholars.