ILLINOIS STATE ARCHIVES
Chicago City Council Proceedings Files, 1833–1871 — Filing Arrangement
| Filing Calendar or Fiscal Year | File Number | Filing Period |
| 0000/00 | 1–143 | Not Dated |
| 1833/33 | 145; 150–155 | Aug. 1833–Nov. 1833 |
| 1834/34 | 156–163 | Jan. 1834–Aug. 1834 |
| 1835/35 | 164–236 | July 1835–Dec. 1835 |
| 1836/36 | 237–267 | Jan. 1836–Dec. 1836 |
| 1837/37 | 268–478 | Jan. 1837–Dec. 1837 |
| 1838/38 | 479–719 | Jan. 1838–Dec. 1838 |
| 1839/39 | 720–874 | Jan. 1839–Dec. 1839 |
| 1840/40 | 875–1051 | Jan. 1840–Dec. 1840 |
| 1841/41 | 1052–1259 | Jan. 1841–Dec. 1841 |
| 1842/42 | 1260–1521 | Jan. 1842–Dec. 1842 |
| 1843/43 | 1522–1832 | Jan. 1843–Dec. 1843 |
| 1844/44 | 1833–2334 | Jan. 1844–Dec. 1844 |
| 1845/45 | 2335–2869 | Jan. 1845–Dec. 1845 |
| 1846/46 | 2870–3553 | Jan. 1846–Dec. 1846 |
| 1846/46 | 6759; 6760; 6971 | May 1846–Aug. 1846 |
| 1847/47 | 3554–4160 | Jan. 1847–Dec. 1847 |
| 1847/47 | 6761–6779 | Jan. 1847–Nov. 1847 |
| 1848/48 | 4161–5041 | Jan. 1848–Dec. 1848 |
| 1848/48 | 6780–6855 | Jan. 1848–Dec. 1848 |
| 1848/48 | 6926–6927 | June 1848–July 1848 |
| 1849/49 | 5043–5844 | Jan. 1849–Dec. 1849 |
| 1849/49 | 6856–6889 | Jan. 1849–Dec. 1849 |
| 1849/49 | 6928–6930 | Aug. 1849–Oct. 1849 |
| 1850/50 | 5845–6679 | Jan. 1850–Dec. 1850 |
| 1850/50 | 6890–6919 | Jan. 1850–Dec. 1850 |
| 1850/50 | 6931–6942 | Sept. 1850–Dec. 1850 |
| 1850/50 | 6971–6973 | Jan. 1850–Apr. 1850 |
| 1850/50 | 6976; 6982; 6986; 6987 | Apr. 1850–Nov. 1850 |
| 1851/51 | 6680–6758 | Jan. 1851–May 1851 |
| 1851/51 | 6920–6925 | Feb. 1851 |
| 1851/51 | 6943–6985; 6988 | Jan. 1851–Mar. 1851 |
| 1851/52 | 1–1673 | Mar. 1851–Mar. 1852 |
| 1852/53 | 1–1532 | Mar. 1852–Mar. 1853 |
| 1853/54 | 1–1872 | Mar. 1853–Mar. 1854 |
| 1854/55 | 1–2261 | Mar. 1854–Mar. 1855 |
| 1855/56 | 1–2479 | Mar. 1855–Mar. 1856 |
| 1856/57 | 1–2126 | Mar. 1856–Mar. 1857 |
| 1857/58 | 1–1461 | Mar. 1857–Mar. 1858 |
| 1858/59 | 2–1093 | Mar. 1858–Mar. 1859 |
| 1859/60 | 1–986 | Mar. 1859–Mar. 1860 |
| 1860/61 | 1–480 | Mar. 1860–May 1861 |
| 1861/62 | 1–459 | May 1861–May 1862 |
| 1862/63 | 1–356 | May 1862–Apr. 1863 |
| 1863/64 | 1–729 | May 1863–Apr. 1864 |
| 1864/65 | 1–560 | May 1864–Apr. 1865 |
| 1865/66 | 1–1372 | May 1865–May 1866 |
| 1866/67 | 1–1312 | May 1866–May 1867 |
| 1867/68 | 1–1455 | May 1867–May 1868 |
| 1868/69 | 1–3023 | May 1868–Nov. 1869 |
| 1869/70 | 1–2199 | Dec. 1869–Dec. 1870 |
| 1870/71 | 1–1269 | Dec. 1870–Nov. 1871 |
| 1871/72 | 1–92 | Nov. 1871–Dec. 1871 |