Box 1, Folder 1
Renouncement of Fortunata and Eureka silver mines by George Foster
1892 January 19
General note
Two signed documents embossed with the seal of Baja California Norte, in which Foster renounces his ownership of two silver
mines in Baja California.
Box 1, Folder 2
Letters - Samuel Franklin Emmons, Washington, D.C., to George Foster
1892-1893
General note
Two letters from Emmons, president of the New Pedrara Onyx Company, authorizing George Foster to act as the company's agent
in Baja California, and other business concerns. Mentions a shipment of onyx to the 1893 Chicago World's Fair.
Box 1, Folder 3
Letters - William Denton and George Foster, San Diego, with Matías Romero, Washington, D.C.
1893 October
General note
Two letters from Denton and Foster describing challenges of geological prospecting (the terrain and legal troubles), and requesting
help obtaining mineral rights in Baja California; and Romero's response.
Box 1, Folder 4
Reports by William Denton
1893
General note
Four reports by William Denton describing mineral deposits and mines near Punta Final, Baja California (including survey of
San Francisco mine), and geological specimens from Cedros Island.
Oversize MC-024, Folder 07
Denton, William. Mapa de un terreno mineral llamado Las Minas del Punto Final; Mapa de la mina San Francisco de la groupa
[sic] de Minas del Punto Final
1893 August 26
Mapa de un terreno mineral llamado Las Minas del Punto Final; Mapa de la mina San Francisco de la groupa [sic] de Minas del
Punto Final: 1893 August 26
General note
Manuscript map on oilcloth of two Baja California mining properties. Solicitado por el Señor Santiago Bareño. 34.5 by 15.5
inches.
Oversize MC-024, Folder 07
Untitled manuscript map showing part of northern Baja California
circa 1893
Manuscript map showing part of northern Baja California: circa 1893
General note
Manuscript map on oilcloth depicting an area approximately between the 28th and 31st parallel. Red ink numbers along coasts
likely record soundings. Place names noted: San Quintín, El Rosario, Ballenas Channel, Cedros Island (mislabeled Cerros Island),
and a few others. Scale undetermined. 24 by 18.5 inches.
Box 1, Folder 5
Lower California Onyx Company investment brochure fragment
circa 1910
Box 1, Folder 6
Letters - Correspondence between Robert B. Moran, Nathan Moran, and Thomas H. Frothingham
1925
General note
Correspondence primarily between petroleum geologist Robert Breck Moran, Nathan Moran, and Thomas H. Frothingham ("Don Tomas")
regarding banking, planning, and expenses for Baja California expeditions. Frothingham writes on American Consular Service
letterhead from Guaymas, Mexico; other letters originate in San Diego, Los Angeles, and San Francisco. Other correspondents
include a J. P. Brown and B. M. Elliott.
Box 1, Folder 7
Letter - Kathleen Loeser, San Francisco, to Robert Moran
1937 October 27
General note
Letter regarding Loeser family's mining documents.