In this issue: An 1870 proposal to annex the San Luis Valley into New Mexico called into question just who could claim to be a Coloradan. The debate raged, with ramifications we still feel today. This is the winning essay in our first annual Emerging Historians Award competition. Also in this issue, the 1895 Pocket Kodak let amateur photographers—including two Fort Collins natives—document their everyday lives. And read about the recently acquired John R. Henderson Collection of materials from the career of a notable Mid-Century Modern architect, who was also the first licensed African American architect in Denver.