Another revision introduced in many KJV editions after 1800 is at 1 Samuel 2:13.
Since the Hebrew Masoretic text has a Hebrew word plural in number for priests, "priest's custom" in the 1769 Oxford KJV edition was revised or textually corrected to "priests' custom" in the 1873 Cambridge.
1 Samuel 2:13 [priests’ custom--NKJV]
priest's custom (1768, 1769, 1772, 1777, 1783, 1784, 1787, 1788, 1791, 1792, 1795, 1795e, 1798, 1799, 1800, 1803, 1804, 1808, 1810, 1813, 1819, 1821, 1823, 1828, 1829, 1830, 1831, 1835, 1836, 1838, 1840, 1847, 1850, 1853, 1857, 1859, 1865, 1868, 1870, 1873, 1876, 1880, 1885, 1890 Oxford) [1762, 1763B, 1769, 1773, 1775, 1778, 1783, 1790, 1792, 1794, 1795, 1800, 1812, 1816, 1817, 1822, 1823, 1824, 1833, 1837, 1844, 1865, 1869, 1872, 1887 Cambridge] (1750, 1759, 1760, 1763, 1764, 1772, 1795, 1811, 1813, 1814, 1816, 1817, 1818, 1820, 1824, 1825, 1827, 1831, 1837, 1838, 1839, 1853, 1860, 1867, 1870, 1877, 1879, 1880 London) (1789, 1791, 1793, 1802, 1810, 1820, 1827, 1842, 1843, 1851, 1858 Edinburgh) (1860, 1866 Glasgow) (1782, 1801, 1809 Dublin) (1774 Bristol) (1774, 1777 Fortescu) (1776 Birmingham) (1777 Wood) (1780 Gill) (1782 Aitken) (1785 Wilson) (1790 Bolton) (1791, 1816 Collins) (1791, 1841 Thomas) (1799 Helston) (1801 Hopkins) (1802, 1813 Carey) (1804 Gower) (1804, 1807, 1813 Johnson) (1808, 1828, 1833 MH) (1809, 1810, 1813, 1818, 1826, 1828 Boston) (1810 Scott) (1810 Woodward) (1811 Hewlett) (1815 Walpole) (1816 Albany) (1816 Mercein) (1818 Holbrook) (Clarke) (1818, 1819, 1827, 1829, 1831, 1843, 1850, 1851, 1853, 1854, 1855, 1858, 1868, 1888, 1894, 1902, 1954, 1956, 1957, 1963, 1968, 1970, 1971, 1984, 1988, 2004, 2008 ABS) (1821, 1831 Brown) (1823, 1827 Smith) (1824, 1826 Bagster) (1832 PSE) (1832 Wilbur) (1834 Coit) (1835 Towar) (1836, 1848 Hartford) (1836 Stebbing) (1837 Knight) (1840 Roby) (1842 Girdlestone) (1843, 1850, 1856 AFBS) (1843 Cobbin) (1843 Robinson) (1846 Coldstream) (1846 Portland) (1845, 1854, 1876 Harding) (1853 Butler) (1859, 1868 RTS) (1873 Cooke) (1876 Porter) (1895, 1958 NPC) (1897 ABU) (1905, 1945, 1954, 1989, 1991, 2004 World) (1908 1957, 1964 TCRB) (1910 Collins) (1924, 1958 Hertel) (1940, 1976, 1979-1, 1979-2, 1996, 1998, 2010, 2013 Holman) (1942 UBBH) (1948 WSE) (1961, 1975, 1978, 2008 GID) (1961 NBP) (1972, 1987, 1989, 1991, 2001, 2002, 2003 TN) (1974 MBI) (1975 CBP) (1976 BH) (WMCRB) (KJRLB) (JVIPB) (Nave’s) (Dake’s) (1984, 1991 AMG) (1985 Open) (1985 VB) (1987 Dugan) (1987 PSI) (1990 REG) (MSB) (KJVCB) (2001, 2002, 2003, 2011, 2012, 2015, 2016 Barbour) (KJVJB) (2003 EB) (2005 ICC) (2006 PP) (2008 Pilot) (2009 Strand) (2010, 2015 Baker) (2010 BEAMS) (2010 BRO) (2011 AMP) (APB) (2011 PJB) (HMSB) (2012 F-S) (2012 WSB) (HKJVSB) (2014 NGB) (2015 KJVFSB) (2015 KAPPA) (1833 WEB) (1842 Bernard)
priests' custom (1928, 1977 Oxford, SRB, 1996 SSB, Oxford Classic, NPB) [1873, 2005, 2011 Cambridge, 1953 PM, CCR, CSTE, DKJB, 2011 PMR, 2011 Transetto Text, 2011 Clarion] (1976 London) (1816 Hartford) (1822, 1831, 1832, 1835, 1839 Scott) (1847 Jenks) (1848 IFB) (1911 TCE) (1923 NIB) (1947 SP) (1952 Judson) (1956, 1957, 1958, 1975, 1999 Collins) (1959 Little) (1965, 1968 Royal) (1966 SC) (1970 TN) (1972 NMRB) (1973, 1976 REG) (GPB) (1975 Open) (1976 OGH) (1976 TBR) (CSB) (RRB) (1987, 1988 IBS) (LASB) (CB) (CHSB) (1991, 2012 FWP) (RSB) (1990’s, 2010 LCBP) (TLPSB) (1983, 1984, 1994, 2000, 2002, 2010 ZOND) (1988, 2007 TCRB) (1996 ELKJV) (1997 NPC) (DSB) (2000 Holman) (2000 Rainbow) (Life) (2002, 2010 KJVER) (2003 IGC) (TPB) (HPB) (2006 PENG) (CNB) (VFC) (2007 SFCB) (2007, 2008, 2010, 2011, 2011p HEND) (2008, 2012 ROASB) (NHPB) (2011 KJVDB) (2011 WB) (TBS-WT) (NCE) (2012 Biblica) (2013 HMB) (2013, 2014 TGS) (2014 HKJVSBps) (2014 RHKJVSB) (2014 TSB)