This collection contains subgroups for various businesses owned by the Reinig Family and for various family members and associates.

M. Reinig / Reinig Company grocery business records include general correspondence (1890-1943); financial records (1870-1948), including account ledgers, cash books, invoices, trial balances, etc.; legal documents (1879-1890); a subject file (1934-1935) concerning New Deal coffee codes; miscellany (1900-1913, undated), including architect's drawings and specifications for the store, membership lists for the Helena Retail Merchants' Exchange, etc.; and a clipping (1935) about the history of the store.

Brooklyn Bridge Mining and Milling Company records include general correspondence (1908) of John Kreuger about refinancing of the company; legal documents (1909); and organizational materials (1907-1908), including stockholder lists.

Ehrenberg and Staff / Ehrenberg and Reinig / Montana Cycle Company records include incoming correspondence (1894-1895) with bicycle manufacturers and suppliers, and financial records (1894-1896) consisting mostly of invoices.

Harmonia Gesang Verein records consist of financial records (1873-1877).

Helena Cab Company / Merchants Delivery Company records consist of general correspondence (1909-1917) including answers to a questionnaire about the delivery service from merchants in Champaign, Illinois; financial records (1911-1924); legal documents (1908-1914); and organizational records (1909-1923).

Michael Reinig's personal papers consist of incoming correspondence (1892-1908) mostly about his orchard property near San Diego, California; financial records (1893-1909); legal documents (1873-1906); and miscellany (1895-1909).

In addition there are small subgroups of papers for Charles N. Reinig, Matilida Reinig, William Reinig, Anna Reinig Bardon, William C. Bardon, and William Eicke. [OVERSIZE MATERIAL: map case]