Fiction
Davis’ books are characterized by his desire to tell a story. For his historical fiction, he chose subjects with dramatic flavor, such as the battles of Thermopylae and Salamis, the coming to power of Julius Caesar, Leo the Isaurian’s defense of Constantinople, the beginning of the Protestant Reformation, and the start of the American Revolution. Stylistically, they use narrative of the kind which Josephine Tey called “history-with-conversation”, and his earliest novels have some of the attributes of scholarly publication, including meticulous (and copious) footnotes or appendices. Indeed, a reviewer of a later fictional work noted that previously “Mr. Davis has erred in overabundance of detail. Knowing much is sometimes more troublesome than knowing little, and Mr. Davis's knowledge has in times past seemed too large for his story. In
Falaise, however, this fault is to a most felicitous degree overcome . . . .” The
American National Biography noted that his fictional works “were not classics, . . . but they were accurate and maintained an interesting story line.” He himself would become deeply involved in such writings, to the point of depression when one was finished.
Non-fiction
In a similar manner, the elements of narrative and drama are part of his non-fiction, much of which was written for teaching purposes. His 1910 work on wealth and money in first-century Rome begins with an almost journalistic daily-weekly narrative of bank failures and trading house suspensions leading to a financial panic in 33 AD (which must have read all too familiarly to those who had just weathered the 1907 crash). The opening of
The Roots of the War, perhaps his most contemporaneously widely read nonfiction book, portrays Bismarck, Moltke, and Roon at dinner in 1870, planning what would become the Franco-Prussian War. Among his last works,
Europe Since Waterloo (and all the revisions based upon it) begins with a narrative picture of Napoleon on the deck of the British man-o'-war transporting him to his final exile in St. Helena. Forty years later, Kurt Schmeller, producing the latest revision of that work, would say that he “sought to retain the powerful and dramatic narrative of earlier editions”, and Theodore H. Von Laue’s foreword to the same edition would cite Davis’ “forceful, lively, and down-to-earth style” as a motive to retain the core of a work then moving towards a half-century of use.
Davis’ strong anti-German sentiment colored much of his later non-fiction writing, particularly in his articles and letters to various periodicals. He was a forceful advocate of military preparedness in the years leading up to World War I, for which he was duly criticized in the widely pacifistic feeling of the times (see for example the 1916 exchange of letters in
The Survey). During World War I, Davis and many other academic historians desired to support the war but hesitated between a professionally ethical approach to history and a firm belief in President Wilson’s expressed ideals in advocating American intervention in the War. Davis chose to participate in the work of the government-sponsored Committee on Public Information (CPI). Davis in particular provided historical background and context to the Committee's pamphlet on Wilson’s war message to Congress. For this work, in the years following the War, he and the other participants were criticized by some contemporaries belonging to the "revisionist" historical school, such as Harry Elmer Barnes. Succeeding next-generation scholars in the same tradition were equally critical. A particularly outspoken critic, C. Hartley Gratton, said of Davis' CPI efforts and of his 1918
The Roots of the War that there was "free use of gossip, and the 'revelations' of the Creel Bureau are accepted as definitive truth". Davis himself would write in 1926 of the earlier work that “very little of [that] hastily prepared material has endured under the cold scrutiny demanded by added information and years of retrospect.”. In view of Davis' retirement and early death, what long-term effect such criticisms might have had upon him is unknowable. Blakey sums up the revisionists' efforts by saying that, however they changed the practice of historical writing, "their impact on the subsequent lives and careers of the embattled historians was slight to the point of being negligible," and this could apply fairly to Davis.
Historical approach
Throughout his writing career, both of fiction and non-fiction, Davis’ "angle" to history, as he himself put it in his preface to
Europe Since Waterloo, included:
“a belief in a just form of nationalism, and that a devoted loyalty to native land is entirely reconcilable with an ardent love for wide humanity.
“an intense belief in democracy, . . . and that the modern age is bound to resume the old, old battle against the vicious assumption that some select group of men . . . is competent to decree the destinies of an entire people.
“Finally, . . . a matured belief that only as the spirit of Christianity penetrates the hearts of men will human brotherhood and wide-spread, enduring happiness be achieved . . . . If the so-called Christian nations and rulers have all too often failed unworthily, their failure has been because they knew not the essence of Christianity, however eagerly they have usurped the name.”
Stylistically, Davis never gave up on writing
stories as a medium to convey his love for history as he saw it, and his intense conviction that the knowledge of history should matter to his contemporaries. He had a faculty for describing critical scenes, such as the expulsion of the tribunes in
A Friend of Caesar or Luther before the Diet of Worms in
The Friar of Wittenberg. In his day, he was known for his “vivid, almost melodramatic prose style”.
Twentieth Century Authors would credit him with having welded “fact and fiction without loss of narrative intensity or historical plausibility.”