Era
1747-1781
2
1853-1934, USMA 1876
2
Revolution, 1775-1783
2
1746-1788
1
1775-1783
1
1802-1871, USMA 1824
1
1817-1854, USMA 1838
1
1838-1904, USMA x1862
1
1844-1923
1
1856-1911
1
1876-1961
1
1887-1970
1
1897-1989, USMA 1920
1
1918-1993, USMA 1941
1
1918-1996, USMA 1941
1
1924-2005, USMA 1947
1
1924-2009, USMA 1946
1
Civil War, 1861-1865
1
active 1817-1839
1
active 1836-1839
1
active 1853-1878
1
active 1870
1