By Rebecca O'Neil | Staff Writer A bronze plaque placed at 330 Alexander St. in Nevada City commemorates the homesite of Preston Alexander, who along with his family were some of the first African American settlers in Nevada City in the mid-1850s. The plaque was unveiled earlier this week. Photo: Elias Funez Ten people gathered this week to unveil a plaque of one of Nevada City’s first Black settlers, Preston Alexander. Born in Virginia, Alexander settled with his wife Louisa Alexander in 1854 in Nevada City. Bernard Zimmerman, of the Nevada County Historical Landmarks Commission, said this plaque is just one opportunity to highlight the region’s historic “ethnic” communities.