When genealogists set out to piece together the lives of their research subjects, they often concentrate on text-based sources like letters, city directories and vital records. But photographs also provide a wealth of information about the lives of the people they capture, and can be used to fill in gaps in written histories. The Sadie and Emma Ray Photography Collection takes viewers on a tour through 25 years of one Minnesota family’s life at the beginning of the twentieth century, its images offering an emotional depth that can be hard to find in a birth certificate or census form.