THE CENTER FOR SACRAMENTO HISTORY sometimes gets a little help from its friends. Take the above photograph, which was classified as unidentified. Center staff posted it online, saying that its glass plate black-and-white negative was dated circa 1915. Soon, some sharp individuals commented that it was taken during the construction of St. Elizabeth Catholic Church at 12th and S streets. They noted the position of the state Capitol in the background and the fact that the building is set on an angle compared to the house next to it, then compared the architecture to that of the modern day church. Mystery solved! If you would like to try your hand at identifying some photos, go to centerforsacramentohistory.org and follow the Mystery Image link.