Scope and Contents: This collection contains over 2500 logbooks and notebooks produced by the Harvard Computers and early Harvard astronomers, many of which feature datasets and processing observations relating to the HCO’s collection of astronomical glass plate photographs. The Harvard Computers were a team of women who worked for the Harvard College Observatory under the supervision of Director Edward Charles Pickering (1877-1919). Notable women include: Annie Jump Cannon, Williamina Fleming, Antonia Maury,...