Single pocket expanding folder containing the following documents:

1. Bound typescript, "Interpretation of patent description of the boundaries of Rancho Los Cerritos and Rancho San Pedro," S.M. Marshall, 33 pp, with table of contents and two cover letters. Report produced for PD&TC re interpreting boundary description between San Pedro and Los Cerritos claims, navigability and tidal character of San Gabriel River, and City of Long Beach claim to channel no. 1; four maps bound in at end showing shoreline around mouth of San Gabriel River

2. Bound typescript, "Discussion of Mr. Marshall's memorandum of January 24, 1939, in re boundaries of Los Cerritos Grant," William W. Clary and Jackson W. Chance, 39 pp, discussion of "Interpretation of patent description of the boundaries of Rancho Los Cerritos and Rancho San Pedro," with maps and figures to illustrate legal and surveying concepts such as the tracing of boundary lines across river mouths "to preserve . . . the general contour of the larger body of water," at pp 11-13, 15-17, following p 21, pp 25, 27, 29, following p 32