| Street | No. | Plaque Name | Plaque Date | HAP Ref |
| Ames Hollow Road | 66 | Isaac Hall | 1740 | D31 |
| Ames Hollow Road | 73 | John Churchill | 1772 | D30 |
| Ames Hollow Road | 78 | Colton-Shepard | 1844 | D29 |
| Ames Hollow Road | 116 | Nicholas Ames | 1775 | D28 |
| Ames Hollow Road | 157 | Frederick Ames | 1865 | D27 |
| Ames Hollow Road | 166 | Russell Hopkins | 1845-49 | D26 |
| Bartlett Street | 38 | Rev. Cyprian Strong | 1770 | B04 |
| Bartlett Street | 41 | Joseph Sage | 1804 | B02 |
| Bartlett Street | 55 | Samuel Spaulding | 1845 | B03 |
| Bartlett Street | 87 | Annie B & John R. Gordon | 1916 | B50 |
| Bartlett Street | 118 | John Shepard | 1845 | C03 |
| Bartlett Street | 125 | Lt. Daniel Shepard | 1770 | C04 |
| Breezy Corner Rd. | 68 | Nathaniel Brown 2nd House | 1822 | D20 |
| Breezy Corner Rd. | 102 | Nathaniel Brown | 1786 | D19 |
| Commerce St. | 14 | Seth Johnson | 1827 | A39 |
| Cornwall St. | 74 | Joseph Stocking | 1757 | C33 |
| Cornwall St. | X | Samuel Butler | 1790 | C34 |
| Cornwall St. | X | Jeremiah Buck | 1792 | C35 |
| Cotton Hill Road | x | Barn | | C28 |
| Cox Road | 55 | Abel or Richard Strickland | 1741 | C39 |
| Cox Road | 134 | Nichols-Cornwall | 1755 | C41 |
| Cox Road | 211 | Samuel P. Hurlbut | 1860 | C42 |
| Cox Road | 238 | Alanson Hurlbut | 1828 | C43 |
| E. Cotton Hill | 126 | John W. Reeves | 1851 | C25 |
| E. Cotton Hill | 245 | James Buck | 1799 | C27 |
| E. Cotton Hill | 252 | James F. Buck | 1847 | C26 |
| East Main Street | 33 | Central School | 1889 | A48 |
| East Main Street | 43 | Edward L. Stine | 1897 | A49 |
| East Main Street | 51 | John C. Barry | 1897 | A50 |
| Fairview Street | 23 | Spencer-Whitby | 1887 | A47 |
| Ferry Lane | 1 | Gladwin Boat Shop | c.1866 | B07 |
| Freestone Ave. | 23 | Frederick & Jane Kelsey | c.1875 | A27 |
| Freestone Ave. | 29 | George H. Taylor | 1862 | A28 |
| Freestone Ave. | 36 | Henry Cadwell | 1852 | A36 |
| Freestone Ave. | 40 | William H. Sears | 1853 | A35 |
| Freestone Ave. | 51 | St. Mary’s Rectory | c.1882 | A30 |
| Freestone Ave. | 65 | Workers Housing | 1919 | A31 |
| Freestone Ave. | 67 | Workers Housing | 1919 | A31 |
| Freestone Ave. | 77 | Workers Housing | 1919 | A31 |
| Freestone Ave. | 10x2-112 | Portland Realty | | A34 |
| Freestone Ave. | 118-128 | Portland Realty | | A33 |
| Freestone Ave. | 119-129 | Portland Realty | | A32 |
| Freestone Ave. | 45x | Orig. St. Mary’s Church | 1877 | A29 |
| Glastonbury Tpke | 791 | Up City School | 1857 | C15 |
| Glastonbury Tpke | 813 | Goodrich/Crittenden | 1775 | C19 |
| Glastonbury Tpke | 895 | Jeremiah Goodrich, Jr. | 1764? | C20 |
| Glastonbury Tpke | ?x | Nelson Shepard | 1850 | C16 |
| Glastonbury Tpke | ?x | George Crittenden | 1830 | C18 |
| Glastonbury Tpke | 799-801 | Edward Shepard | 1840 | C17 |
| Glastonbury Tpke | X | William Cornwell | Before 1691 | C11 |
| Gospel Lane | 316 | Enoch Sage | 1778 | C06 |
| Gospel Lane | 375 | Noah N. Strickland | 1823-31 | C07 |
| Gospel Lane | 422 | | 1714 | C09 |
| Gospel Lane | x | Eddy-Strickland | 1781 | C08 |
| Great Hill Road | 47 | Johnson Pelton | 1745 | C47 |
| Great Hill Road | 121 | Elijah Stocking | 1750 | C45 |
| Great Hill Road | 193 | Jesse Hurlbut | 1800 | C44 |
| Grove St. | 50?x | Warner/Pelton | 1764 | A05 |
| Hall Hill Road | 4 | George Stancliff | 1845 | D34 |
| High Street | 119 | Capt. Ebenezer Smith | 1708 | D35 |
| Indian Hill Ave. | 3 | Job Bates | 1749 | B44 |
| Indian Hill Ave. | 5 | David Bates | 1779 | B43 |
| Indian Hill Ave. | 32 | Elijah Shepard | 1799 | B32 |
| Indian Hill Ave. | 40 | Theodore Lewis | 1846 | B33 |
| Indian Hill Ave. | 42 | John R. Lewis | 1889 | B34 |
| Indian Hill Ave. | 46 | Abiel Cheney, Jr. | 1784 | B35 |
| Indian Hill Ave. | 52 | William Dixon | 1849 | B36 |
| Indian Hill Ave. | 57 | Richard Conklin | 1849 | B41 |
| Indian Hill Ave. | 58 | Philip Gildersleeve | 1787 | B37 |
| Indian Hill Ave. | 64 | John Pelton, Jr. | 1796 | B38 |
| Indian Hill Ave. | 70 | Sarah Lincoln | 1871 | B39 |
| Indian Hill Ave. | 76 | Thomas Stevenson | 1766 | B40 |
| Indian Hill Ave. | 15 x | John Button | 1796 | B42 |
| Isinglass Hill | 186 | 2nd David Hale House | 1845 | C21 |
| Isinglass Hill | 202 | Orin Hale | 1825 | C22 |
| Jobs Pond Road | 75 | Jonathan Brown | 1773 | D21 |
| Jobs Pond Road | 186 | Town Farm | 1840 | D23 |
| Main Street | 188 | Laverty’s Saloon | 1884 | A23 |
| Main Street | 231 | Frederic Hall | 1845 | A24 |
| Main Street | 245 | Alfred Hall | 1839 | A26 |
| Main Street | 246 | Joel Hall Jr. | c.1805 | A40 |
| Main Street | 249 | Halls Store/Bells | 1848 | A37 |
| Main Street | 251 | Geo & Prudence Bush | 1788 | A41 |
| Main Street | 259 | Charles Bell | 1883 | A42 |
| Main Street | 269 | First Nat’l Bank | 1925 | A44 |
| Main Street | 311 | Samuel Warner | 1712 | A46 |
| Main Street | 315 | Emily Churchill | 1870 | A51 |
| Main Street | 321 | Erastus Kelsey | 1825 | A52 |
| Main Street | 324 | George Hilliard | 1850 | A53 |
| Main Street | 325 | Brainerd Sisters | 1888-89 | A54 |
| Main Street | 329 | George Gillum Jr. | c.1851 | A55 |
| Main Street | 332 | Alfred H. Allen | 1871 | A56 |
| Main Street | 336 | Hayes P. Ransom | 1853 | A57 |
| Main Street | 337 | Thomas Pickering | 1886 | A58 |
| Main Street | 344 | Dr. George Jarvis | 1840 | X01 |
| Main Street | 345 | Trinity Church | 1892 | A59 |
| Main Street | 350 | Patten-Goodspeed | 1837 | A60 |
| Main Street | 356 | Robert Patten | 1827 | A61 |
| Main Street | 370 | Mary Bidwell | 1805 | A67 |
| Main Street | 376 | Jabez Jones | 1848 | A68 |
| Main Street | 380 | Clifford Daniels | 1848 | A69 |
| Main Street | 381 | Methodist Church | 1853 | A70 |
| Main Street | 384 | Capt. Wellington Coe | 1849 | A71 |
| Main Street | 394 | Elisha Covell | 1848 | A72 |
| Main Street | 405 | Elisha Covell | 1856 | A73 |
| Main Street | 448 | Reuben Willcox | 1790 | A74 |
| Main Street | 478 | Deacon Samuel Hall | 1708 | A75 |
| Main Street | 492 | Nathaniel White | 1714 | A76 |
| Main Street | 496 | Augustin Overton | 1812 | A77 |
| Main Street | 497 | Moses Willcox | 1755 | A78 |
| Main Street | 513 | Capt. James Gibbs | 1770 | A79 |
| Main Street | 523 | Ebenezer Gibbs | 1732 | A80 |
| Main Street | 532 | Joseph Sage | 1804 | A81 |
| Main Street | 533 | Capt. J. I. Worthington | 1841 | A82 |
| Main Street | 553 | First Ecclesiastical Society | 1869 | B05 |
| Main Street | 554 | First Ecclesiastical Society | 1850 | B01 |
| Main Street | 568 | George Pettis | 1845 | B06 |
| Main Street | 572 | Rev. Hervey Talcott | 1820 | B08 |
| Main Street | 576 | Dr. Charles H. Gilbert | 1857 | B09 |
| Main Street | 577 | George J. White | 1845 | B10 |
| Main Street | 582 | Ebenezer White | 1755 | B11 |
| Main Street | 584 | David White | 1774 | B12 |
| Main Street | 585 | Stephen H. White | 1849 | B13 |
| Main Street | 589 | Capt. Jeremiah Goodrich | 1740 | B14 |
| Main Street | 597 | Ellery Taylor | 1855 | B15 |
| Main Street | 598 | Luther Savage | 1840 | B16 |
| Main Street | 601 | Engine Company 2 | 1889 | B17 |
| Main Street | 604 | John Isley | 1869 | B18 |
| Main Street | 605 | Edgar Button | 1845 | B19 |
| Main Street | 608 | Evelyn White | 1842 | B22 |
| Main Street | 609 | Alvin Brown | 1845 | B20 |
| Main Street | 613 | Jonathan Warner | 1703 | B21 |
| Main Street | 617 | Sylvester Gildersleeve | 1834 | B23 |
| Main Street | 618 | Jeremiah Gildersleeve | 1807 | B24 |
| Main Street | 624 | Henry Gildersleeve Jr. | 1888 | B25 |
| Main Street | 625 | Henry Gildersleeve | 1907 | B26 |
| Main Street | 628 | George Lewis, Jr. | 1778 | B28 |
| Main Street | 629 | Capt. Cicero Brown | 1852 | B27 |
| Main Street | 643 | Capt. Giles Hall | c.1717 | B45 |
| Main Street | 644 | Buckingham Store | c.1859 | B30 |
| Main Street | 646 | Gildersleeve Store | c.1855 | B31 |
| Main Street | 656 | Gild. Store in Storage | 1844 | B31 |
| Main Street | 689 | Capt. Jeremiah Goodrich | 1740 | X03 |
| Main Street | 1367 | David Stocking | 1814 | C10 |
| Main Street | 228-230 | Shaler & Hall Quarry | 1840 | A25 |
| Main Street | 240-242 | Nathan Gillum | 1795 | A38 |
| Main Street | 261-265 | Nathan J. Fuller | 1852-1856 | A43 |
| Main Street | 633-635 | Capt. Abiel Cheny | 1757 | B29 |
| Maple Road | 13 | William Turner | 1832 | D22 |
| Marlborough St. | 23 | John Sage | | A17 |
| Marlborough St. | 30 | Francis A. Chapman | 1847 | A12 |
| Marlborough St. | 58 | | 1890? | A19 |
| Marlborough St. | 64 | | 1890? | A18 |
| Marlborough St. | 70 | Joseph Williams | 1854 | A14 |
| Marlborough St. | 78 | Gilbert Stancliff | c.1855 | A13 |
| Marlborough St. | 109 | John Hapney | c.1870 | A09 |
| Marlborough St. | 144 | Southmayd | c.1735 | A06 |
| Marlborough St. | 221 | Portland Railroad Sta. | 1874 | A07 |
| Marlborough St. | ? | Erastus Brainerd, Jr. | 1852 | A15 |
| Marlborough St. | ? | Hart/Jarvis | 1830 | A16 |
| Marlborough St. | 86x | George Ranney Jr. | 1771 | A10 |
| Middle Haddam Rd. | 92 | John Payne | 1760 | D18 |
| Middle Haddam Road | 267 | Knowles Taylor | 1831 | D14 |
| Middle Haddam Road | 332 | George S. Hubbard | 1852 | D12 |
| Middle Haddam Road | 350 | George Hubbard | 1786 | D11 |
| Middle Haddam Road | ? | Jesse Hubbard | 1790 | D13 |
| Old Marlborough Turnpike | 3 | Jonathan Stocking | 1785 | C32 |
| Old Marlborough Turnpike | 224 | Nathan Goodrich | 1825 | C31 |
| Old Marlborough Turnpike | 305 | Buck-Kerr | 1818? | C30 |
| Old Marlborough Turnpike | 341 | Samuel Buck | 1835 | C29 |
| Penfield Hill | 43 | Elisha Turner | 1815 | D10 |
| Penfield Hill | 76 | Brown Stewart | 178+ | D09 |
| Penfield Hill | 103 | Sanford Stewart | 1827 | D08 |
| Penfield Hill | 126 | Daniel Button | 1780 | D07 |
| Penfield Hill | 176 | Samuel/Russell Penfield | 1785 | D06 |
| Penfield Hill | 207 | John Shepard | 1755 | D05 |
| Penfield Hill | 241 | Penfield Hill School | 1830 | D04 |
| Penfield Hill | 247 | First Daniel Shepard | 1754 | D03 |
| Penfield Hill | 277 | Ebenezer Pelton | 1829-33 | D02 |
| Penfield Hill | 356 | Herman & Ann Springer | 1943 | D01 |
| Penny Corner | 7 | William Starr White | 1845-49 | C02 |
| Penny Corner | 29 | Cleveland Button | 1852 | C01 |
| Pepperidge Road | 24 | Daniel & Mary Lee | 1709 | D25 |
| Pepperidge Road | 37 | Daniel Smith Tannery | 1815 | D24 |
| Pickering St. | 63 | Pickering Governor Co | 1904 | A11 |
| Portland=Cobalt Rd. | 1331 - 1333 | Clifford Payne | 1795 | D17 |
| Portland-Cobalt Rd | 1931 | St. Clements | 1898? | D15 |
| Portland-Cobalt Rd. | 1535 | Noah N. Strickland | 1840? | D16 |
| Prospect St. | 45 | George Strickland | 1835 | B49 |
| Prospect St. | 62 | Elizabeth Ranney | 1783 | B48 |
| Riverview St. | 44 | L. C. Bliss | 1871 | A01 |
| Riverview St. | 58 | Joseph Kellogg | 1782 | A02 |
| Riverview St. | 62 | Henry P. McCleve | c.1875 | A03 |
| Riverview St. | 64 | John McCleve | 1795 | A04 |
| Rose Hill | 130 | David Hale | 1752 | C38 |
| Rose Hill | 198 | Amos Cornwall | 1825 | C36 |
| Rose Hill | 155 | Rose Hill School | 1889 | C37 |
| Rose Hill Road | 121 | George Cox | 1855 | C40 |
| Sand Hill Road | 105 | Timothy Bliss | 1804 | D33 |
| Sand Hill Road | 164 | Abraham Baily | 1774 | D32 |
| Silver St. | 8 | Shaler & Hall Quarry | 1840 | A20 |
| Silver St. | 12 | Shaler & Hall Quarry | 1840 | A22 |
| Silver St. | 10 | Shaler & Hall Quarry | 1840 | A21 |
| Spring Street | 7 | William R. Smith | 1862 | A62 |
| Spring Street | 14 | Gustavus Root | 1854 | A66 |
| Spring Street | 20 | Charles A. Jarvis | 1870 | A65 |
| Spring Street | 27 | Michael Reardon | 1853 | A63 |
| Spring Street | 29 | Daniel Russell | 1855 | A64 |
| Stephen Tom Road | 80 | John Stocking | 1838 | C46 |
| Strickland St. | 24 | Seth & Anna Strickland | 1804 | C05 |
| Summer Street | 28 | Prudence Crosby | 1770 | B47 |
| Thompson Hill | 118 | Abner Hall | 1840 | C24 |
| Thompson Hill | 126 | Capt. Harley Case | 1845 | C23 |
| W. Cotton Hill | 23 | Joel Boardman | 1789 | C13 |
| W. Cotton Hill | X | Jonathan Pelton | 1818 | C14 |
| Waverly Avenue | 13 | Swedish Evang. Lutheran Zion Church | 1877-1879 | A45 |
| Wilcox Hill | X | Mary Pemberton | 1798 | C12 |