| Abstracts of General Elections | 1884 |
| Abstracts of Monthly Reports from State Institutions | 1887-1891 |
| Abstracts of Original Land Entries, Adams County-Wright County | 1847-1859 |
| Annual Reports to the Governor and General Assembly | 1859-1883 |
| Articles of Incorporation, Amendments and By-Laws of Insurance Companies | 1919-1920 |
| Articles of Incorporation and By-Laws of Insurance Companies | 1919-1920 |
| Assessments, County | 1848-1910 |
| Assessments, Miscellaneous | 1849-1910 |
| Assessments, Railroads | 1854-1901 |
| Assessments, Telegraph and Telephone | c.1869-c.1904 |
| Attorney General Opinions | 1855-1908 |
| Audits of State Schools, Colleges and Universities | 1903-1947 |
| Balance Books | 1863-1895 |
| Cancelled State Bonds, Civil War and Defense Fund Issue | 1861 |
| Cancelled State Bonds, Issues of | 1847, 1849, 1858 |
| Certificates | 1840-1908 |
| Claims | 1884-1890 |
| Commissioners Records of Claims & Evidence for the Civil War & Defense Fund | 1861-1866 |
| Corporations, Annual Statements of Causality, Fidelity and Surety Insurance Companies | 1911 |
| Corporations, Annual Statements of Fire and Life Insurance Companies | 1891-1909 |
| Corporations, Annual Statements of Fire Insurance Companies | 1871-1911 |
| Corporations, Annual Statements of Fraternal Accident Insurance Companies | 1910 |
| Corporations, Annual Statements of Insurance Companies | 1863-1890 |
| Corporations, Annual Statements of Life Insurance Companies | 1871-1910 |
| Corporations, Annual Statements of Miscellaneous Insurance Companies | 1907-1911 |
| Corporations, Annual Statements of Mutual Insurance Associations | 1888-1908 |
| Corporations, Annual Statements of Mutual Insurance Companies | 1891-1909 |
| Corporations, Banks | 1870-1916 |
| Corporations, Building and Loan | 1895-1905, 1911-1914 |
| Corporations, Express | 1897-1900 |
| Corporations, Insurance | 1855-1916 |
| Corporations, Insurance Agents Record | 1857-1911 |
| Corporations, Ledger of Annual Fees Paid by State Banks | 1904-1909 |
| Corporations, List of Banks | 1871-1882 |
| Corporations, Loan, Trust, and Investment Companies | 1890-1915 |
| Corporations, Registers of Savings Banks | 1874-1900 |
| Corporations, Registers of State Banks | 1883-1900 |
| Corporations, Telegraph and Telephone | 1890-1915 |
| Correspondence | 1840-1912 |
| Correspondence, Banks | 1915-1917 |
| Correspondence, Claims | 1841-1907 |
| Correspondence, Insurance | |
| Dictionary Fund | 1859-1867 |
| Journals | 1849-1911 |
| Ledger and Warrant Books, Guaranty Fund Association | 1883-1889 |
| Ledgers, County | 1888-1913 |
| Ledgers, General | 1854-1913 |
| Ledgers, State Institutions | 1900-1933 |
| Letter Books, Banks | 1884-1907 |
| Letter Books, Building and Loan | 1896-1905 |
| Letter Books, County Officers | 1871-1909 |
| Letter Books, Insurance | 1873-1909 |
| Letter Books, Miscellaneous | 1840-1908 |
| Letter Books, Miscellaneous, Revenue | 1893-1904 |
| Letter Books, Telephone | 1903-1904 |
| Letter Books, Warrants | 1901-1909 |
| Orphans Home Fund | 1867-1868 |
| Reports, State Institutions | 1849-1916 |
| Reports, Municipal Accounting Examiners | 1913-1930 |
| Warrant Registers | 1843-1911 |