Champaign County's earliest records of naturalization are found in the Minute Books of the Clerk of Common Pleas Court spanning the years 1820-1859. Some naturalizations are found in the Clerk of Courts, District Court Minutes, for the years 1852-1880.
From 1860-1906, naturalizations were issued by the Champaign County Probate Court. By 1906 the naturalization process was centralized having been taken over by the federal government under the jurisdiction The Bureau of Immigration and Naturalization.
Submissions from 2022
Nystrom, Gustaf H. - Naturalization Index Record, Champaign County Probate Court
O'brian, Michael - Naturalization Index Record, Champaign County Probate Court
O'brien, James - Naturalization Index Record, Champaign County Probate Court
O'brien, Jeremiah - Naturalization Index Record, Champaign County Probate Court
O'brien, Jeremiah - Naturalization Index Record, Champaign County Probate Court
O'brien, Richard - Naturalization Index Record, Champaign County Probate Court
O'brien, Richard - Naturalization Index Record, Champaign County Probate Court
O'brien, Timothy - Naturalization Index Record, Champaign County Probate Court
O'brien, Timothy - Naturalization Index Record, Champaign County Probate Court
O'bryan, Edward - Naturalization Index Record, Champaign County Probate Court
O'bryan, Edward - Naturalization Index Record, Champaign County Probate Court
O'bryan, Edward - Naturalization Index Record, Champaign County Probate Court
O'conner, John - Naturalization Index Record, Champaign County Probate Court
O'conner, Michael - Naturalization Index Record, Champaign County Probate Court
O'connor, Eliza - Naturalization Index Record, Champaign County Probate Court
O'connor, John - Naturalization Index Record, Champaign County Probate Court
O'connor, Michael - Naturalization Index Record, Champaign County Probate Court
O'connor, Patrick - Naturalization Index Record, Champaign County Probate Court
O'donnell, Michael - Naturalization Index Record, Champaign County Probate Court
Oelkea, Christian - Naturalization Index Record, Champaign County Probate Court
Oelker, Christian - Naturalization Index Record, Champaign County Probate Court
Oelker, Earnest - Naturalization Index Record, Champaign County Probate Court
Oelker, Earnst - Naturalization Index Record, Champaign County Probate Court
Oelker, Ernest - Naturalization Index Record, Champaign County Probate Court
O'gonnor, John - Naturalization Index Record, Champaign County Probate Court
Ohler, George - Naturalization Index Record, Champaign County Probate Court
Ohler, George - Naturalization Index Record, Champaign County Probate Court
O'laughlin, Michael - Naturalization Index Record, Champaign County Probate Court
O'malley, James - Naturalization Index Record, Champaign County Probate Court
O'mallie, James - Naturalization Index Record, Champaign County Probate Court
Omallie, James - Naturalization Index Record, Champaign County Probate Court
O'rorke, Michael - Naturalization Index Record, Champaign County Probate Court
O'rorke, Michael - Naturalization Index Record, Champaign County Probate Court
O'sullivan, Timothy - Naturalization Index Record, Champaign County Probate Court
Otto, Wilhelm - Naturalization Index Record, Champaign County Probate Court
Patrick, Dan - Naturalization Index Record, Champaign County Probate Court
Petersen, Philip - Naturalization Index Record, Champaign County Probate Court
Peterson, Carl William - Naturalization Index Record, Champaign County Probate Court
Peterson, Carl William - Naturalization Index Record, Champaign County Probate Court
Peterson, Ens - Naturalization Index Record, Champaign County Probate Court
Peterson, Fens - Naturalization Index Record, Champaign County Probate Court
Peterson, Les Peter - Naturalization Index Record, Champaign County Probate Court
Peterson, Les Peter - Naturalization Index Record, Champaign County Probate Court
Peterson, Les Peter - Naturalization Index Record, Champaign County Probate Court
Peterson, Philip - Naturalization Index Record, Champaign County Probate Court
Pollast, Theodore - Naturalization Index Record, Champaign County Probate Court
Power, Edmond - Naturalization Index Record, Champaign County Probate Court
Power, Edward - Naturalization Index Record, Champaign County Probate Court
Powers, Patrick - Naturalization Index Record, Champaign County Probate Court
Powers, Robert - Naturalization Index Record, Champaign County Probate Court
Powers, Thomas - Naturalization Index Record, Champaign County Probate Court
Power, Thomas - Naturalization Index Record, Champaign County Probate Court
Purcell, Edmond - Naturalization Index Record, Champaign County Probate Court
Purcell, Edmund - Naturalization Index Record, Champaign County Probate Court
Purdy, Henry - Naturalization Index Record, Champaign County Probate Court
Quinn, Patrick - Naturalization Index Record, Champaign County Probate Court
Quinn, Patrick - Naturalization Index Record, Champaign County Probate Court
Quinn, Patrick - Naturalization Index Record, Champaign County Probate Court
Quirk, Phillip - Naturalization Index Record, Champaign County Probate Court
Rauch, Peter - Naturalization Index Record, Champaign County Probate Court
Rauch, Peter - Naturalization Index Record, Champaign County Probate Court
Rauch, Philip - Naturalization Index Record, Champaign County Probate Court
Rauch, Philip - Naturalization Index Record, Champaign County Probate Court
Rauch, Phillip - Naturalization Index Record, Champaign County Probate Court
Read, William - Naturalization Index Record, Champaign County Probate Court
Reed, Clara C. - Naturalization Index Record, Champaign County Probate Court
Reed, John - Naturalization Index Record, Champaign County Probate Court
Reed, Joseph - Naturalization Index Record, Champaign County Probate Court
Reidy, James - Naturalization Index Record, Champaign County Probate Court
Rexer, John Gottleb - Naturalization Index Record, Champaign County Probate Court
Rexer, John Gottlieb - Naturalization Index Record, Champaign County Probate Court
Rexer, John Gottlob - Naturalization Index Record, Champaign County Probate Court
Rexor, Fred - Naturalization Index Record, Champaign County Probate Court
Rice, William - Naturalization Index Record, Champaign County Probate Court
Richman, John - Naturalization Index Record, Champaign County Probate Court
Richmon, John - Naturalization Index Record, Champaign County Probate Court
Richmon, John - Naturalization Index Record, Champaign County Probate Court
Riley, Jeremiah - Naturalization Index Record, Champaign County Probate Court
Riley, Jeremiah - Naturalization Index Record, Champaign County Probate Court
Ringold, John - Naturalization Index Record, Champaign County Probate Court
Ringold, John - Naturalization Index Record, Champaign County Probate Court
Ringold, John - Naturalization Index Record, Champaign County Probate Court
Rippa, Fritz C. - Naturalization Index Record, Champaign County Probate Court
Robenow, Phillip - Naturalization Index Record, Champaign County Probate Court
Robertson, William - Naturalization Index Record, Champaign County Probate Court
Rooney, Joshua - Naturalization Index Record, Champaign County Probate Court
Rooney, Joshua - Naturalization Index Record, Champaign County Probate Court
Rose, Christopher - Naturalization Index Record, Champaign County Probate Court
Ross, Hugh - Naturalization Index Record, Champaign County Probate Court
Rudolph, William Henry - Naturalization Index Record, Champaign County Probate Court
Rudolph, William Henry - Naturalization Index Record, Champaign County Probate Court
Ruffell, James R. - Naturalization Index Record, Champaign County Probate Court
Ruffell, James R. - Naturalization Index Record, Champaign County Probate Court
Rusbridge, John L. - Naturalization Index Record, Champaign County Probate Court
Rushbridge, John L. - Naturalization Index Record, Champaign County Probate Court
Ryan, Charles M. - Naturalization Index Record, Champaign County Probate Court
Ryan, Charles M. - Naturalization Index Record, Champaign County Probate Court
Ryan, Edward - Naturalization Index Record, Champaign County Probate Court
Ryan, James - Naturalization Index Record, Champaign County Probate Court
Ryan, James - Naturalization Index Record, Champaign County Probate Court
