Ava Cohn, aka Sherlock Cohn, The Photo Genealogist, is a professional genealogist who brings a lifelong fascination with heirloom photographs and a multidisciplinary background to photo dating and interpretation. A native upstate New Yorker transplanted to Chicago, she has a degree from Brandeis University, Waltham, MA and coursework in decorative arts, art history and costume history at the Victoria and Albert Museum, London. Working with both hobbyists and professional genealogists, Cohn combines a specialized knowledge of immigrant and Eastern European culture and traditions, along with fashion, family histories and vital records to tell the background stories in family photographs. A member of the Association of Professional Genealogists and the Jewish Genealogical Society of Illinois, Ms. Cohn is the only professional genealogist who devotes her work exclusively to Jewish family photographs. In addition to speaking, she is a popular writer whose articles have appeared in Avotaynu, The International Review of Jewish Genealogy, Morasha and RootsKey, among others.