The author examines the use of visual resources in American history scholarship over a five-year period. The article reports on a citation analysis of 554 images published in two top American history journals from 2010 through 2014. The data collected in this study documents the extent to which images were used in history research and the types of libraries and archival repositories from which historians accessed images. Based on the study data, the article explores characteristics of frequently cited libraries and archival repositories, the capacity in which images function as historical evidence, and implications for libraries based on the findings.