Baptized 12 June 1827 at Fonda Church, Fonda, Montgomery County, New York
Parents - Henry G. Ostrander and Annj Relyea

1850 Federal Census New York:
Residence: Victory, Cayuga County
Peter Ostrander, age 23 years, Occupation Blacksmith
Catharine Sprague, age 31years (she was an older sister)
Mary Sprague, age 7 years (she was Peter's niece)
Wells Sprague, age 5 years (he was Peter's nephew)
Ruth Sprague, age 4 years (she was Peter's niece)

1855 New York State Census:
Residence: Cato, Cayuga County
Peter Ostrander, age 27 years
Sarah G. Ostrander, age 27 years
Harriet E. Ostrander, age 4 years

1860 Federal Census New York:
Residence: Victory, Cayuga County
Peter Ostrander, age 32 years, Occupation Wagon Maker
Sarah Ostrander, age 32 years
Harriet Ostrander, age 9 years
Ellen Ostrander, age 4 years
Charles Ostrander, age 2 months

1865 New York State Census:
Residence: Victory, Cayuga County
Peter Ostrander, age 37 years, born in Herkimer County
Sarah Ostrander, age 37 years, born in Herkimer County
Harriet Ostrander, age 14 years, born in Wayne County
Ellen Ostrander, age 9 years, born in Wayne County
Charles Ostrander, age 5 years, born in Cayuga County
T? (Illegible) Ostrander, 3 months, born in Cayuga County

1870 Federal Census New York:
Residence: Brutus, Cayuga County
Peter Ostrander, age 43 years, Occupation Blacksmith
Sarah Ostrander, age 43 years, Occupation Keeping House
Ella Ostrander, age 14 years
Charlie Ostrander, age 10 years, Occupation At School
Frank Ostrander, age 8 years
Saty Ostrander, age 3 years

1875 State Census New York:
Residence: Brutus, Cayuga County
Peter Ostrander, age 46 years, born in Herkimer County
Sarah Ostrander, age 46 years, born in Herkimer County
Hattie E. Durby, age 24 years, born in Onondaga County
Ellen Ostrander, age 19 years, born in Cayuga County
Charles Ostrander, age 15 years, born in Cayuga County
Frank Ostrander, age 13 years, born in Cayuga County
Sarah Ostrander, age 7 years, born in Cayuga County

1880 Federal Census Michigan:
Residence: Sumner, Gratiot County
Peter Ostrander, age 53 years, Head, Occupation Farmer
Sarah Ostrander, age 53 years, Wife, Occupation Keeping House
Charles Ostrander, age 20, Son, Occupation Laborer
Frank A. Ostrander, age 18 years, Son, Occupation Laborer
Sarah S. Ostrander, age 12 years, Daughter, Occupation At School

1890 Veterans Schedule:
Residence: Sumner, Gratiot County
Peter R. Ostrander

1900 Federal Census Michigan:
Residence: Sumner, Gratiot County
Peter R. Ostrander, age 73 years, Head, Occupation Farmer
Sarah G. Ostrander, age 73 years, Wife, Occupation nothing listed
Frank A. Ostrander, age 38 years, Son, Occupation Laborer – Farm

1910 Federal Census Michigan:
Residence: Sumner, Gratiot County
Peter Ostrander, age 82 years, Head, Occupation Farmer
Almira Ostrander, age 59 years, Wife, Occupation nothing listed
Rollo Clark, age 39 years, Boarder, Occupation Laborer

Peter Relyea served in the Civil War;
111th New York Infantry, Company C
Enlisted 8 August 1862 at Victory, Cayuga County, New York
Mustered in 20 August 1862
Wounded 16 June 1864 Petersburg, Virginia
Discharged 4 June 1865 at Alexandria, Virginia
Applied for an Invalid Pension on 13 June 1888
Application Number 659881
Certificate Number 591094

Col. Ely Post No. 158 Grand Army of the Republic was organized July 10, 1883 by Commander G.T. Brown of the Ithaca Post and 17 comrades of that post. Peter Ostrander was one of the Comrades mustered in that day.