In Clark County, the earliest naturalization records were listed under the Clerk of Courts, Common Pleas Court. Between 1820-1854, these records are found scattered throughout the minutes of the Common Pleas Court, and then are found in the District Court records from 1852-1884. Naturalizations from 1856-1877 are in the Clerk of Courts records.
As early as 1861, naturalizations were handled through the Probate Court. This continued until 1906, when naturalizations records came under the jurisdiction of the federal government.
Submissions from 2022
Oderfeld, Julius Heinrich - Naturalization Index Record, Clark County Clerk of Courts
Oderfeldt, Herman Henry - Naturalization Index Record, Clark County Clerk of Courts
O'donnold, John - Naturalization Index Record, Clark County Clerk of Courts
Ogert, Thomas - Naturalization Index Record, Clark County Clerk of Courts
O'haile, Charles - Naturalization Index Record, Clark County Clerk of Courts
Oharra, Michael - Naturalization Index Record, Clark County Clerk of Courts
O'harron, Thomas - Naturalization Index Record, Clark County Clerk of Courts
O'hear, Hugh - Naturalization Index Record, Clark County Clerk of Courts
O'mara, Edmond - Naturalization Index Record, Clark County Clerk of Courts
O'mara, Edmund - Naturalization Index Record, Clark County Clerk of Courts
O'mara, John - Naturalization Index Record, Clark County Clerk of Courts
O'mara, John - Naturalization Index Record, Clark County Clerk of Courts
O'mara, Lawrince - Naturalization Index Record, Clark County Clerk of Courts
O'mara, Timothy - Naturalization Index Record, Clark County Clerk of Courts
O'meary, Maurice - Naturalization Index Record, Clark County Clerk of Courts
O'neal, Henry - Naturalization Index Record, Clark County Clerk of Courts
O'neal, Patrick - Naturalization Index Record, Clark County Clerk of Courts
O'neal, Patrick - Naturalization Index Record, Clark County Clerk of Courts
O'neil, Daniel - Naturalization Index Record, Clark County Clerk of Courts
O'neill, John - Naturalization Index Record, Clark County Clerk of Courts
O'neil, Patrick - Naturalization Index Record, Clark County Clerk of Courts
Onemus, Landelon - Naturalization Index Record, Clark County Clerk of Courts
Onimur, Landelow - Naturalization Index Record, Clark County Clerk of Courts
Onne, John - Naturalization Index Record, Clark County Clerk of Courts
Orme, John - Naturalization Index Record, Clark County Clerk of Courts
O'sullivan, Daniel - Naturalization Index Record, Clark County Clerk of Courts
O'sullivan, Daniel - Naturalization Index Record, Clark County Clerk of Courts
Otte, Ferdinand - Naturalization Index Record, Clark County Clerk of Courts
Ott, George - Naturalization Index Record, Clark County Clerk of Courts
Outhart, John - Naturalization Index Record, Clark County Clerk of Courts
Outhart, John - Naturalization Index Record, Clark County Clerk of Courts
Owen, Humphrey - Naturalization Index Record, Clark County Clerk of Courts
Oye, Henry - Naturalization Index Record, Clark County Clerk of Courts
Paice, Thomas - Naturalization Index Record, Clark County Clerk of Courts
Paige, John S. - Naturalization Index Record, Clark County Clerk of Courts
Palmer, James - Naturalization Index Record, Clark County Clerk of Courts
Palmer, James - Naturalization Index Record, Clark County Clerk of Courts
Palmer, William - Naturalization Index Record, Clark County Clerk of Courts
Palmer, William - Naturalization Index Record, Clark County Clerk of Courts
Paoli, Christian - Naturalization Index Record, Clark County Clerk of Courts
Pappert, Wendlin - Naturalization Index Record, Clark County Clerk of Courts
Parker, Thomas - Naturalization Index Record, Clark County Clerk of Courts
Park, Nicholas - Naturalization Index Record, Clark County Clerk of Courts
Patcak, Charles - Naturalization Index Record, Clark County Clerk of Courts
Pattison, Joseph - Naturalization Index Record, Clark County Clerk of Courts
Patzak, Charles - Naturalization Index Record, Clark County Clerk of Courts
Pea, Henry - Naturalization Index Record, Clark County Clerk of Courts
Pearson, William - Naturalization Index Record, Clark County Clerk of Courts
Peat, John - Naturalization Index Record, Clark County Clerk of Courts
Peat, Joseph - Naturalization Index Record, Clark County Clerk of Courts
Pebe, Helman Detrick - Naturalization Index Record, Clark County Clerk of Courts
Peene, William - Naturalization Index Record, Clark County Clerk of Courts
Peggins, Charles - Naturalization Index Record, Clark County Clerk of Courts
Pehe, Helman Detrick - Naturalization Index Record, Clark County Clerk of Courts
Pelan, James - Naturalization Index Record, Clark County Clerk of Courts
Pelan, John - Naturalization Index Record, Clark County Clerk of Courts
Perry, Andrew - Naturalization Index Record, Clark County Clerk of Courts
Peters, Dennis - Naturalization Index Record, Clark County Clerk of Courts
Peters, Dennis - Naturalization Index Record, Clark County Clerk of Courts
Peters, John - Naturalization Index Record, Clark County Clerk of Courts
Peters, John - Naturalization Index Record, Clark County Clerk of Courts
Pfeifer, George - Naturalization Index Record, Clark County Clerk of Courts
Pfiester, Arnold - Naturalization Index Record, Clark County Clerk of Courts
Phalan, Matthew - Naturalization Index Record, Clark County Clerk of Courts
Phillips, William - Naturalization Index Record, Clark County Clerk of Courts
Phipher, Henry - Naturalization Index Record, Clark County Clerk of Courts
Pierce, Dennis - Naturalization Index Record, Clark County Clerk of Courts
Pine, David - Naturalization Index Record, Clark County Clerk of Courts
Pine, John - Naturalization Index Record, Clark County Clerk of Courts
Pine, Patrick - Naturalization Index Record, Clark County Clerk of Courts
Plank, Christopher - Naturalization Index Record, Clark County Clerk of Courts
Pollard, Robert - Naturalization Index Record, Clark County Clerk of Courts
Poltz, Conrad - Naturalization Index Record, Clark County Clerk of Courts
Porter, William - Naturalization Index Record, Clark County Clerk of Courts
Porter, William - Naturalization Index Record, Clark County Clerk of Courts
Pottle, James - Naturalization Index Record, Clark County Clerk of Courts
Pottle, James - Naturalization Index Record, Clark County Clerk of Courts
Powers, Martin - Naturalization Index Record, Clark County Clerk of Courts
Powers, Martin - Naturalization Index Record, Clark County Clerk of Courts
Power, Thomas - Naturalization Index Record, Clark County Clerk of Courts
Price, James - Naturalization Index Record, Clark County Clerk of Courts
Procht, Christian - Naturalization Index Record, Clark County Clerk of Courts
Prosser, Thomea - Naturalization Index Record, Clark County Clerk of Courts
Protherr, David - Naturalization Index Record, Clark County Clerk of Courts
Purkis, James Massey - Naturalization Index Record, Clark County Clerk of Courts
Purkis, James Massy - Naturalization Index Record, Clark County Clerk of Courts
Pursell, Patrick - Naturalization Index Record, Clark County Clerk of Courts
Quade, Martin - Naturalization Index Record, Clark County Clerk of Courts
Quann, Martin - Naturalization Index Record, Clark County Clerk of Courts
Quill, Simon - Naturalization Index Record, Clark County Clerk of Courts
Quill, Simon - Naturalization Index Record, Clark County Clerk of Courts
Quin, Henry - Naturalization Index Record, Clark County Clerk of Courts
Quin, Henry - Naturalization Index Record, Clark County Clerk of Courts
Quinn, James - Naturalization Index Record, Clark County Clerk of Courts
Quinn, James - Naturalization Index Record, Clark County Clerk of Courts
Quinn, John - Naturalization Index Record, Clark County Clerk of Courts
Quinn, Michael - Naturalization Index Record, Clark County Clerk of Courts
Quinn, Michael - Naturalization Index Record, Clark County Clerk of Courts
Quinn, Patrick - Naturalization Index Record, Clark County Clerk of Courts
Quinn, Thomas - Naturalization Index Record, Clark County Clerk of Courts
