-OVC = Ohio Volunteer Cavalry   OVI = Ohio Volunteer Infantry  VRC = Veteran Reserve (Invalid) Corp
other states abbreviated 

N
Nangle, William J. 101st PA Co.C disabled  (1841-1915 Sager) Bristol
Near, William H.    6th OVC Co. I  (1840-1907 Niles Union) Niles
Nelson, Cal  171st OVI Co. D  (1830-1902) Liberty
Nelson, James M.   19th OVI Co. C, transferred Veteran Reserve Corp, (1844-1924 Evergreen) Bristolville
Nelson, John S.  19th OVI Co. C  (1839-1918 NM) Liberty
Neiss, Adam     171st OVI Co. B (1836-1914 Niles Union) Weathersfield
Neitheimer, Jacob    171st OVI Co. B  (1834-1908 St. Stephens) Niles
Nephew, Benjamin F.  41st OVI Co. A  (1828-1886 Hayes Cem.)  Hartford
Nephew, Robert B.  53rd PA Co.D, VRC (1842-1892) Hubbard
Netterfield, Joseph Sylvester   177th OVI Co. G  (1846-1882 Oakwood) Warren
Newman, Henry C.  2nd OVC Co. E   (1835-1912 Belmont) Austintown
Newton, George W.  5th OH Independent Sharpshooters,  disabled (1831-1915 Oak Hill Union) Hubbard
Newton, Issac M.   171st OVI Co. G, (1824-1898  Presbyterian) Farmdale
Nickerson, George H.   145th PA Co. G, Sgt., captured & paroled, (1833-1908 Kinsman New) Kinsman
Nichols, Thomas  U.S. Navy, USS Minnesota  (d. 1882 Churchill) Liberty
Niles, Henry D. 105th OVI Co. B, 2nd Lt., post-war Minister (1827-1895 IA)  Bristol
Nims, Julius K.   86th OVI Co. G, 177th OVI Co. C, (1846-1917 Greenlawn) Greensburg
Noble, Johnson  29th OVI Co. C, captured at Port Republic,  (1844-1898 Center West) Gustavus
Nolan, James C. 140th PA Co. B  Sergeant,  wounded at Chancellorsville, Gettysburg, (1831-1910 Vienna Center)  Vienna
Norris, Martin D.  29th OVI  QMSgt., 2nd Lt. Co. A, (1824-1899 FL)  Mesopotamia
North, Arial  19th OVI Co. G,  (1824-1901 Center) Braceville
North, Cyrus L.  19th OVI Co.G, 2nd OH Heavy Artillery Battery G, (1829 - 1901) Braceville
North, William S. 19th OVI Co. G, disabled (1838-1902)  Braceville 
Northway, Delos R. 6th OVC Major (1835-1864 VA) Mesopotamia
Norton, George L.  41st OVI Co. A  (1838-1862 Louisville, KY) Hartford
Norton, Samuel H.  41st OVI Co. H, wounded & disabled at Murfreesboro, TN, (1833-1903 Pinecrest) Southington

O
Oatley, Edwin 2nd OVC Co. D,  wounded at Waynesboro, VA, (1842-1894 West) Farmington
O'Brien, Michael  41st OVI Co. D, (b. 1820) Weathersfield
O'Doud, Thomas R.  155th NY Co. F, (1839-1921)  Warren
Officer, Robert W.  1st PA Light Artillery (1845-1904 Girard-Liberty Union) Liberty
Ohl, Eli J.  30th IN Co. A,  196th OVI Co. A, 2nd Lt.,  post war Colonel, Ohio National Guard (1846-1901 Riverside-Kerr)  Ohltown
Ohl, Hiram   20th OVI Co. H  Sgt. (1840-1928 Niles Union) Lordstown
Ohl, William 20th OVI Co. H  (1842-1917 Niles Union)  Lordstown
Oliphant, William  100th PA Co. K,  (1846 -  1929 Belmont)  Liberty
Oliver, Cyrus C.  105th OVI Co. B, VRC  (1826-1910 Oak Hill) Warren
Oliver, George W.   7th OVI Co. H, 5th OVI,  wounded in Georgia  (1827- 1905 Sandusky Soldiers Home) Warren
Olmstead, Horace A.  23rd OVI Co. B (1848-1910 Sager) N. Bristol
Olmstead, William  5th U.S. Colored Troops,  Co. F, (b. 1846  West Mecca) Warren
Olmstead, William (Olmsted)  24th OVI Co. F, VRC  (b.1836) Newton  
O'Malley, Edward B. 136th NY Co. E, Cpl. (1847 - 1916 Oakwood)  
Opdycke,  Emerson 41st OVI Co. A, Captain,  125th OVI, Colonel,  Brigadier General, Brevet Major General  (1830-1884 New York City, Oakwood Cemetery) Hubbard, Warren
Oppenlander, Jacob  6th OVC Co. I, (1838-1864 St. Mary's Church, MD)  Warren
Ormsby, James B.  28th IA Co. D 2nd Lt (1841-1919 MO) Bazetta
Ort, David  19th OVI Co. G, VRC (1828-1908 Elyria, OH)  Weathersfield
Orwick, Aaron (Orwig)  Trumbull Guards (1822-1898 PA)  Bazetta  
Orwig, James W. 171st OVI Co. B, (1824-1894 Niles Union) Niles
Osborn, Alfred  105th OVI Co. C,  (1832-1881 Girard-Liberty Union) Liberty
Osborn, Andrew  5th NY Heavy Artillery Battery E, captured at Cedar Creek, 4 months in Libby Prison (1837-1903 East Farmington) Southington
Osborn, Franklin  19th OVI Co. E, (1830-1916 Evergreen) Bristolville
Osborn, Harmon B.  6th OVC Co. D,Corporal,  171st OVI Co. H, (1839-1911 Evergreen) Farmington
Osborn, John C.  7th OVI Co. H, 125th OVI Co. C,  wagon master, (1841-1909) Bristolville  
Osborn, Joseph A.  84th OVI Co. B, 171st OVI Co. D, Corporal, (1842-1864 Keller's Bridge, KY) Liberty
Osborn, Josiah  63rd OVI unassigned recruit, (1835 - 1910 Evergreen) Bristolville
Osborn, Morris M.  7th OVI Co. H,  wounded at Port Republic,  (1842-1925 Dayton Soldiers Home) Champion 
Osborn, William H. 105th OVI  Co. K  1st Lt., (1838-1897) Warren 
Osborn, William N.  23rd OVI Co. E, (b. 1842) Liberty
Osmer, Addison F.   86th OVI Co. G, 171st OVI Co. H,  (1844-1915 West) Farmington
Osmer, Orvil     86th OVI, 171st OVI, 196th OVI Co. D, Sgt., (1846-1940 Hillside)  Farmington  
Oswalt, Daniel  5th OVI Co. F, 24th OVI Co. F Sgt., wounded at Stones River,  18th U.S. Co. G (b.1837) Howland  
Otis, Henry H.  87th OVI Co. B, Captain, (1838-1913 IA)  Johnston  
Oviatt, Ancel P.  2nd OVC Co. D (1841-1901 Maple Grove, Ravenna) Braceville  
Oviatt, Elisha L. 5th Iowa Inf. Co. D, Sgt., POW (1827-1907 IA) Braceville
Oviatt, Erastus E. 19th OVI Co. G,  (1835-1902 Center)  Braceville
Oviatt, George W.B. 14th MI Co. H,  post war Lake Co. MI Sheriff, MI State legislator  (1849-1888) Newton Falls
Oviatt, Homer   6th OVC Co. D   (1835-1900 Newton Falls East)   Newton Falls
Oviatt, Joseph Seth  6th OVC Co. F (1847 - 1919 Ruffcorn Cem., Mondamin, IA) ) Braceville
Oviatt, Lester S.  19th OVI Co. G, 6th OVC Co. K  (1849 - killed 1862 at Shiloh) Braceville
Oviatt, Martin V.  6th OVC Co. K,Sgt.  (1839-1904 Center) Bloomfield
Oviatt, Samuel J.  57th OVI Co. D  (1837-1863 Vicksburg Nat'l Cem) Braceville
Oviatt, Sylvanus  171st OVI  fife major (1832-1903 Newton Falls East)   Newton Falls
Oviatt, Uriah  N.  20th OVI Co. H, (1828-1862 Shiloh, TN)  Braceville
Oviatt, Wilson H.  3rd NY Cavalry Co. A, captured at 1st Bull Run, escaped from Libby Prison,  Surgeon, 3rd U.S. Cavalry, transferred to U.S. Navy post-war, (1834-1921 Cleveland) Warren
Owry, Isaac   20th OVI Co. H, wounded  (1831-1906 Wilson-Pine Knoll) Lordstown 
Owry, John  7th OVI Co. H (3 mo's), 20th OH Co. H, (1837-1893) Warren
Owry, John H. 107th PA Co. D, Wagoner (b. 1829) Weathersfield