The History Center’s Thomas & Katherine Detre Library & Archives will host a special workshop to help visitors learn the best methods for researching their family history. On Sat., Feb. 23, genealogists will present their research on the manumission papers included in the From Slavery to Freedom exhibit. The experts will share genealogy methods used to research those ancestors who were enslaved and emancipated. This History Center workshop is co-sponsored by the Afro-American Genealogical Society of Pittsburgh and supported by the Department of Education Underground Railroad Educational and Cultural Program. Workshop admission is free. Please register at library@heinzhistorycenter.org or 412-454-6364.