Single pocket expanding folder containing the following documents:

Bound typescript, "Original surveys and landmarks in the Los Angeles-Long Beach Harbor area, report no. 2, Los Cerritos Rancho, July, 1939," Francis Bates, 144 pp including historical background of Los Cerritos Rancho, notes on George Hansen (1855), Henry Hancock (1856), and subsequent surveys of Los Cerritos Rancho area, notes on attempts by Francis Bates to reestablish said surveys in 1938-1939

Bound typescript by Francis Bates, "Original surveys and landmarks in the Los Angeles-Long Beach Harbor area, report no. 2, July, 1939, Appendix 'A', contents: plates I to XVII, calculations," with bound in maps and manuscript calculation tables, bound-in reproductions of maps and tables mentioned in report no. 2 (more than seventeen plates) with manuscript calculation tables:

Plate I. Negative photostat, "Diseno de los Parages llamados Sta Gertrudes, Coyotes, Bolsas, Alamitos y Sierritos" (undated; from Huntington Library?)

Plate II. "Los Cerritos Rancho, Hancock's boundary survey, Rancho courses revolved 0-06.53 clockwise, for reference to Deadman's Island meridian"

Plate III. "Los Cerritos Rancho, Hancock's traverse of Slough No. 1, or inlet, Rancho courses revolved 0-06.53, clockwise, for reference to Deadman's Island meridian"

Plate IV (1). "Plat of the Rancho Los Cerritos, finally confirmed to Juan Temple, surveyed under instructions from the US Surveyor General, by Henry Hancock, dep. sur. July 1866"

Plate IV (2). Plan of "Los Cerritos Rancho;" Plate IV (3), plan of "Los Cerritos Rancho;" Plate V, labelled "'Rejected' Los Cerritos Rancho" by Bates, "Plat of the Rancho Los Cerritos, finally confirmed to Juan Temple, surveyed under instructions US Surveyor General, by Henry Hancock, dep. surv."

Plate VI. "Union Pacific RR Co., Survey - 1937-38, Field Book 10, p. 72, Francis Bates - RE 164"

Plate VII. "Established positions, original survey, San Pedro Rancho"

Plate VIII. "Established positions on compromise line of 1884"

Plate IX. "Location of original survey lines"

Plate X. Portion of Hancock's rejected map, showing original surveys at mouth of San Gabriel River"

Plate XI. "Portion of Geo. Hansen's Map of Los Cerritos Rancho (1858) (on file in Bixby Land Co. office) showing original surveys at mouth of San Gabriel River"

Plate XII. "Portion of coast survey map of 1859, showing original surveys at mouth of San Gabriel River"

Plate XII. "Portion of coast survey map of 1872, showing original surveys at mouth of San Gabriel River"

Plate XIV. "Hydrography of map of 1859 superimposed on portion of coast survey map of 1872, and showing original surveys at mouth of San Gabriel River"

Plate XV. "Portion of LA Terminal RR map of 1890, showing original surveys at mouth of San Gabriel River"

Plate XVI. "Hydrography of map of 1872, superimposed on portion of LA Terminal RR map of 1890, and showing original surveys at mouth of San Gabriel River"

Plate XVII. "Senate Document 18 55 1 showing original surveys at mouth of San Gabriel River," (1896)

Bound typescript by Francis Bates, "Original surveys and landmarks in the Los Angeles-Long Beach Harbor area, Report no. 2, July, 1939, Appendix 'B,' original field notes," 229 pp including table of contents

Two loose, large format maps: "Map of a part of the coast of California from Point Fermin eastward to San Gabriel River, 1859," US Coast Survey, A D Bache Superintendent, Section X. (1859, later reproduction); and "Coast east of San Pedro Bay, Cal.," US Coast Survey, Benjamin Pierce Superintendent, Sec. X., showing Drum Barracks in northwest quadrant (1872, later reproduction)