There is growing scholarly interest in the history of postcolonial Africa. However, this study entails several methodological challenges, including insufficient availability of archival materials. A multi-archival strategy offers one solution to the challenge of locating new documentary sources. In this paper, I suggest that nonconventional archives such as the National Archives of the United States should be explored in historical studies of postcolonial African countries, including smaller countries like Rwanda. Focusing on the political events that occurred in Rwanda in January 1961 that led to significant changes in the country, this paper demonstrates how American archival materials can enhance our understanding by shedding light on what existing colonial archives have not revealed.