| Gadeken, Henry L. | Jeweller | D 1845-1850 |
| Gaely, see Geley | | |
| Galbraith, Patrick | Watchmaker | D 1794-1798, 1800-1817 |
| Gallard, Peter | Jeweller | D 1807-1811 |
| Gallard & Co. | Jewellers | D 1811-1822 |
| Gamble, Charles | Jeweller | D 1847-1849 |
| Garde, John | Silversmith | D 1849-1850 |
| Gardiner, Baldwin | Jeweller | D 1814-1817 |
| Gardiner, Sidney, see Fletcher & Gardiner | |
| Gardner, George | Jeweller | D 1841-1842 |
| Garllow, Shavelier | Goldsmith & Taylor | D 1813 |
| Garren, Anthony | Goldsmith | D 1811-1814 |
| Garrett, Philip | Watchmaker | D 1801-1835 |
| Garrett, Philip & Son | Watchmakers | D 1828-1835 |
| Garrett, Thomas C. | Watchmaker | D 1829-1840 |
| Garrett, Thomas C. & Co. | Watchmakers | D 1841-1850 |
| Garrett & Hartley | Watchmakers | D 1837 |
| Garrett & Haydock | Watch Case Makers | D 1837-1840 |
| Garrigues, Jacob J. | Silverplater | D 1837 |
| Garrow & Dorsey | Jewellers | D 1800 |
| Gatham, see Gethen | | |
| Gaudechaud, Peter | Jeweller | D 1814-1833 |
| Cause, Gotleib | Sword Maker | D 1840-1841 |
| Gaushier, J. B. | Jeweller | D 1835 |
| Gaw, William (or W. P.) | Watchmaker | D 1816, 1819-1822 |
| Gaw, see also Widdifield & Gaw | | |
| Gealey, see Geley | | |
| Gee, Joseph | Goldsmith | D 1785, Adv. 1788 |
| Geley, Peter | Goldsmith | D 1793-1814, d. 1815 |
| Georgeon, Bernard | Silversmith | D 1795-1798 |
| Georgeon & Philipe | Goldsmiths | D 1794 |
| Gerg, see Gery | | |
| Geriung, see Guerin | | |
| Germon, Greenberry D. | Goldsmith | D 1813-1833 |
| Germon, John | Silversmith | Adv. 1782, D 1785-1825 |
| Gero, Francis | Goldsmith | D 1818 |
| Gery, Herman | Watchmaker | D 1848,1850 |
| Gessler, Christian | Jeweller | D 1841, 1843-1844, 1846-1850 |
| Gethen, John | Silversmith | D 1811-1818 |
| Gethen, William | Silversmith | D 1797-1798, 1800-1808 |
| Geyley, see Geley | | |
| Ghiselin, Caesar | Goldsmith | 1695, d. 1733 |
| Ghiselin, William | Goldsmith | Adv. 1750-1762, d. 1782? |
| Gibbons, Thomas | Watchmaker | Adv. 1751-1752 |
| Gibbs, James | Watchmaker | D 1847 |
| Giberson, William | Silverplater | D 1823-1825 |
| Gibson, William | Goldsmith | D 1845-1849 |
| Gigon, C. & Bros. | Watch Case Makers | D 1839 |
| Gigon, Gustavus | Watch Case Maker | D 1845-1847 |
| Gigon, Z. & G. | Watch Case Makers | D 1842-1850 |
| Gilbert, Charles | Jeweller | D 1835-1837 |
| Gilbert, John | Jeweller | D 1828-1833 |
| Gilbraith see Galbraith | | |
| Giles, Edward | Silverplater | D 1841 |
| Gillard, see Gallard | | |
| Gilley, see Geley | | |
| Gilpin, Vincent C. | Jeweller | D 1837-1843 |
| Gilpin & Taylor | Jewellers | D 1837, 1840-1842 |
| Gilpin, see also Taylor & Gilpin | | |
| Girard, Francis | Goldsmith | D 1817 |
| Girreaun, Stephen | Goldsmith | D 1785 |
| Gistner, John | Engraver | D 1794-1796 |
| Cleaves, John W. | Die Sinker | D 1850 |
| Glenford, George | Jeweller | D 1848 |
| Glenn, William | Silverplater | D 1811 |
| Gobrecht, Christian | Engraver | D 1819, 1823-1844 |
| Gobright, see Gobrecht | | |
| Godichew see Gaudechaud | | |
| Godschalk, Jacob | Watchmaker | Adv. 1771 |
| Go Forth, Jeremiah | Silversmith | 1700 |
| Goldstone, B. | Watchmaker | D 1839 |
| Gombach, John | Goldsmith | D 1802 |
| Gooddy, Henry(Servant To Anthony Fortune) | Engraver | Adv. 1767 |
| Goodfellow, William | Watchmaker | D 1793-1799, 1805, 1808-1813, 1818 |
| Goodfellow & Son | Watchmakers | D 1799 |
| Goodrich, see Smith & Goodrich | | |
| Goodwin, Samuel | Watchmaker | D 1820-1822 |
| Gordon, George | Watchmaker | D 1847-1850 |
| Gordon, James Samuel(Servant To Edmund Milne) | Jeweller | Adv. 1769-1771 |
| Gorgeon & Philipe, see Georgeon & Philipe | |
| Goshea (or Cosher), John | Jeweller | D 1824, 1828-1833 |
| Goudchaud, see Gaudechaud | | |
| Gouge, Jesse W., & Co. | Jewellers | D 1828 |
| Gouiran, Michael | Jeweller | D 1820-1833 |
| Gould, John (or J. H.) | Silversmith | D 1840-1846, 1850 |
| Govett, George | WatchmakerWatchmaker | D 1811-1814, 1818-1819D 1842-1850 |
| Govett, James | Silversmith | D 1802, 1805-1813 |
| Govett, see also Ward & Govett | | |
| Gowran, see Gouiran | | |
| Graham, John | Chaser & Jeweller | D 1837-1840 |
| Graham, Mitchell | Watchmaker | D 1837 |
| Graham, Samuel | Jeweller | D 1825 |
| Graham, William | Watchmaker | Adv. 1733 |
| Grant, William (or Wm. Jr.) | Goldsmith | D 1785-1814 |
| Graval, Gerard | Jeweller | D 1807 |
| Gravelle, Louisa M. | Jeweller | D 1820-1830 |
| Gravelle, Rene L. | Jeweller | D 1813-1831 |
| Gravelle, see also Lefevre & Gravelle | | |
| Gray, John | Jeweller | D 1811 |
| Gray, William H. | Silverplater | D 1845-1846 |
| Green, Glover | Jeweller | D 1844 |
| Green, John | Watchmaker | D 1794, 1796 |
| Greene, William | Jeweller | D 1837-1841 |
| Greene & Bros. | Jewellers | D 1835-1837 |
| Greffin, Peter | Jeweller | D 1801 |
| Gregory, James | Jeweller | D 1837 |
| Gregory & Shuber | Jewellers | D 1837 |
| Griffee, see Griffith | | |
| Griffith, George F. | Jeweller | D 1841-1850 |
| Griffith, L. | Watchmaker | D 1842-1843 |
| Griffith, Samuel | Watchmaker | D 1847 |
| Griscom, George | Silversmith | D 1791 |
| Groff, J. (or J. R.) | Silversmith | D 1841-1850 |
| Gropengiesser, J. L. | Watchmaker | D 1841-1850 |
| Gross, Francis | Silverplater | D 1841-1842 |
| Gross, Francis J. | Silverplater | D 1845-1850 |
| Grout, William | Watchmaker | D 1816 |
| Gudichaud, see Gaudechaud | | |
| Gueries, see Guerin | | |
| Guerin, Anthony | Silversmith | D 1791-1796, 1799-1811, 1814 |
| Guesnard, Theodore | Jeweller | D 1818-1822 |
| Guest, Henry Brown, see Brown, Henry | |
| Guetnard, see Guesnard | | |
| Guild (or Guile), John | Watchmaker | D 1818-1819, 1823-1824 |
| Guirna, see Guerin | | |
| Gurine or Gurnine, see Guerin | | |
| Guyer, Benjamin | Watchmaker | D 1848 |
|