This clip from Genealogy Roadshow starts with an exploration of the history of San Francisco's mint. Then, Karla McLaren works with genealogist Joshua Taylor to fill in the missing pieces of her family tree. The clip focuses on Jamie O'Keefe, a fifth generation San Francisco native, who wants to verify her father's story about the aftermath of the 1906 San Francisco earthquake. After a brief explanation of the historic and destructive earthquake, genealogist Kenyatta Berry sifts through census data and business records to finally set O'Keefe's family story straight.