Matthew Clifford is a freelance writer from the suburbs of Chicago. He joined SABR in 2011 to enhance his research abilities and help preserve accurate facts of baseball history. His background in law enforcement and forensic investigative techniques aid him with historical research and data collection. He has reported several baseball card errors and inaccuracies of player history to SABR and the research department of the National Baseball Hall of Fame. He also writes for SABR’s BioProject.