Blueprint map showing the location of the Iron Mountain Railway, Shasta County, California. M M O'Shaughnessy was the Chief Engineer of this railway, and the map shows a signed, sworn affidavit by both him, and by Louis B. Parrot, President of the Iron Mountain Railway. The map was surveyed by M M O'Shaughnessy, CE. Drawn at a scale of 1,000 feet to 1 inch. The scale of the profile in the map is 100 feet to 1 inch (vertical), and 2,000 feet to 1 inch (horizontal).

Colour map showing the final location of the Iron Mountain Railway, Shasta County, California. The map includes a declaration by M M O'Shaughnessy, Chief Engineer of this railway, certifying its final location and profile. Drawn at a scale of 400 feet to 1 inch.

Blueprint map showing the final location of the Iron Mountain Railway, Shasta County, California. The map includes a declaration by M M O'Shaughnessy, Chief Engineer of this railway, certifying its final location and profile. Drawn at a scale of 400 feet to 1 inch.

Colour profile to accompany the map showing the final location of the Iron Mountain Railway, Shasta County, California. The profile also includes a declaration by M M O'Shaughnessy, Chief Engineer of this railway. The vertical scale is 100 feet to 1 inch, and the horizontal scale is 400 feet to 1 inch. The maximum grade is 375%.

Blueprint profile to accompany the map showing the final location of the Iron Mountain Railway, Shasta County, California. The profile also includes a declaration by M M O'Shaughnessy, Chief Engineer of this railway. The vertical scale is 100 feet to 1 inch, and the horizontal scale is 400 feet to 1 inch. The maximum grade is 375%.

Draft statement of expenses in O'Shaughnessy's handwriting for Mountain Mines Ltd. 1896-1897. Two slips accompanying cheques issued by the Mountain Copper Company Ltd, 31 Dec 1896 and 31 Jul 1897.

File of four letters from Reginald N [Tenman] to M M O'Shaughnessy. In the first, having heard that the Mill Valley cricket club has disbanded, asks O'Shaughnessy if he might consider selling their cricket outfit at a reduced rate. Subsequent letters relate to a cost estimate from O'Shaughnessy, notes the good mood of the team in Mountain Mines, and mentions the Queen's jubilee. The final letter mentions Mr Wright being particular about his staff.

Handwritten letter from Cyril [Brachenbury] to M M O'Shaughnessy on Iron Mountain headed paper, though the author writes from Minneapolis. He reports he has taken up a teaching position there, believing the University to have the "best mining plant of any college or engineering school in America". He had originally planned to study in Columbia in New York, but found the cost of living too expensive. He wonders if O'Shaughnessy will begin work in Alaska the following summer, and asks for further information.

Typed letter from H K Porter (Builders of Light Locomotives) to M M O'Shaughnessy. Enclosing a catalogue (not included), and mentions a separate enclosure a photo "Sir Andrew, the style used by Mountain Mines".

Typed letter to M M O'Shaughnessy from W S Greene of the Department of the Interior appointing him a US Deputy Mineral Surveyor. Outlines the terms under which this offer is pending, and refers to an enclosed oath (not included in archive).

Cover note to M M O'Shaughnessy from H C [Rizer], Chief Clerk at the U S Geological Survey, to accompany publications (not included in archive).