Pioneer Name
Main Residence
Notes

O'Brien, Denis (1837- )
Watertown
 
Olmstead, Edwin Hamilton (1841-1914)
Watertown
sn. Jabez Jr. & Orpha (Knight);
hsb. Emeline Sophia Lewis
Orchard, Ada Ruth (1865-1955)
Hounsfield
dau. Benj. & Armenia (Barnes); wf. Emmett Holden
Orchard, Benjamin (1804-1890)
Hounsfield
Orchard, Effie Estella (1862-1935)
Hnsfield/Lyme/Watn.
dau. Benj. & Armenia (Barnes); wf. Lonson D. Harris
Orchard, Julia (1857-1956)
Hounsfield/WA
dau. Benj. & Armenia (Barnes); wf. Myron Holden
Otis, Mary Ann (1826-1894)  
dau Levi & Clarissa (Jewett)
wf. Thaddeus H. Allen
Overocker, Susie (1797-1874)
Brownville