The Journal of San Diego History Winter 1987, Volume 33, Number 1 Contents of This Issue Horton's Purchase: The Real Story by Dr. Robert F. Heilbron Back to the article   Document from San Diego Historical Society's Research Archives showing "Horton's Purchase" of May 10, 1867.   A partial section of the earliest known photograph of Horton's New San Diego. The photo was taken in the late spring of 1870 from the balcony of the John Grosback house, Seventh and Ash Streets.   Alonzo Horton as a young man.   Map of San Diego Based on James Pascoe's Map of 1870 Showing Numbered Pueblo Lots, New San Deigo (New town). Middletown, City Park Reservation (Balboa Park) and Horton's Addition, including P.L. 1132. Streets designated are only approximate locations with respect to Pueblo Lot lines. Back to the article