Philinda L Unknown [Parents Unknown]
1820 NY Oneida, WestmorelandWidow "Filinda" appears:
1830 NY Oneida, Verona
1840 NY Oswego, Parish
1850 WI Winnebago, Neenah
1860 WI Outagamie, Appleton
1870 WI Waushara, Poy Sippi
Based on the birthplaces and ages of their children, Harvey and Philinda apparently moved from New York to Wisconsin between 1841 and 1846.
There are many family trees at Ancestry.com which claim Harvey died at "Portage, Wisconsin," but in the 1880 census, his widow Philinda is living at Stevens Point, Portage County, Wisconsin. I'll look for a pair of graves there.
Son Sedgwick (418191)
b. abt 1838, New York
d. bef 1850
Julia Eliza Sedgwick (418192)
b. December 1840 [Parish, Oswego,] New York2
d. aft 1920, [Wisconsin]2
m. abt 1861, [Wisconsin], Edwin H Bowen2,3
Mary A Sedgwick (418193)
b. abt 1841, [Parish, Oswego,] New York2
Edwin E Sedgwick (418194)
b. February 1846, Wisconsin2
d. aft 1910, [Wisconsin]2
m. June 16, 1872, Sauk County, Wisconsin, Anna Heba4
At the 1840 census, Harvey had a son and a daughter under 5 years old. At the 1850 census, the son is gone.
More about Harvey Sedgwick:
NHCHS collection Box 6 Folder I sheet 19
1. The Sedgwick Collection (MSS B46) at the New Haven Colony Historical Society
papers of Hubert Merrill Sedgwick, Francis Morris Sedgwick and Frederick J Sedgwick,
2. Census records, any of those indicated.
3. Newspaper Obituary, The Stevens Point (Wisconsin) Gazette, 1896 September 02
4. Wisconsin, Marriages, 1836-1930