In the flurry of activity following the Centennial Exposition, the Kentucky Mummy’s onward journey to Washington went unremarked. Her addition to the national collection was eventually acknowledged in the Smithsonian’s annual report for 1876, without further comment. Cryptic references to this item’s new status can be found in institutional memoranda over the next few years: “Dr. Rau has the mummy on exhibition in first case to the left as you enter his hall,” reads one such note. But in the wilderness of artifacts at the Smithsonian there was little space for nostalgia, and the Mummy does not seem to have attracted the notice of the Washington audience. The implicit alignment of perspectives between local antiquarians and Smithsonian scholars at the end of the 1870s—that the documentation of archaeological evidence was fundamentally tied to experience on the ground, demonstrating the need for local knowledge and widespread cooperation—did not, however, affect the trajectory of archaeological practice in the United States. The implications of the deep files in Mason’s office remained largely unremarked. The passing of this opportunity for archaeological synthesis testifies perhaps more to inadequate institutional frameworks than to conceptual shortcomings. The Smithsonian’s efforts to collect information on American antiquity in the 1870s differed only in detail and scale from the correspondence of the American Antiquarian Society in the 1810s. In both cases—and in many others launched during the intervening years—an institution sought to acquire antiquarian capital through a network of collaborators, exchanging prestige and modest access for information and associated commodities. In the context of the late nineteenth century, however, the failures of such approaches were more evident than their episodic successes, and the sense that opportunities to understand the American past had been squandered was widespread. The words of Moses Fisk, published in 1820, could describe the antiquarian enterprise of his and subsequent generations. “It is to be regretted,” he wrote, “that these ancient ruins and relicks have been exposed to so much depredation. Valuable articles are lost by being found.”