The claims register, 1885-1904, is an oversize volume, arranged alphabetically, which gives the name of the mining claim, the mining district, county, state, name of the locator, date, annual labor record, and transfer history for each claim owned by the Bunker Hill company. Each claim is on a separate page.

Boxes 54 and 55 contain court documents, both typed and printed, which include transcripts of testimony, affidavits, and correspondence. Included are 6 volumes of transcripts and briefs in the Timothy McCarthy vs. Bunker Hill and Sullivan case, 1904-1906.

The agreements, contracts, and similar documents found in boxes 56 and 57 were originally in numbered folders; some were filed behind a subject divider, others began a numerical sequence without the divider. The folders were left in their original order and the subject divisions are in bold type in the inventory.

The property appraisals include correspondence, legal documents and legal descriptions of property and houses acquired by Bunker Hill because of lead contamination in the soil, also material concerning other homes owned by the company. The first folder contains photographs of some of the houses. These papers are in alphabetical order by owner of the property. The financial appraisals of these properties are in box 31 with appraisals of other company property.

In 1968, due to a change in the lead-zinc market, Bunker Hill abandon its development of the Higdon properties in Missouri, which were owned by National Lead Company. NLI responded by changing the discount procedure of the zinc it bought from Bunker Hill. NLI sued also Bunker Hill over the lack of development of Higdon. The related papers include correspondence, legal briefs, affidavits, contracts, invoices and other financial material. All materials are photocopies. Some documents were NLI records given to Bunker Hill, while others were Bunker Hill records given to NLI. The documents from NLI were in labeled folders and the folder headings were retained during processing. Those furnished by Bunker Hill were separated by paper clips or elastic bands, and were not labeled; they are therefore called Group 1, Group 2, etc., in the inventory.