Sources:

1. Records of descendants/researchers of this family
a. Chuck Downen, descendant of Ione Sedgwick and Moses Hart
b. Ione (Sedgwick) Hart, an undated 2-page personal history in her hand

2. Census records, any of those indicated.

3. Ohio, Hamilton County Probate Court Marriage Records
a. Vol 4 (Restored), includes 1834, filmed on LDS FHL US/CAN Film 344452 image here

4. Cemetery records for Louisville Cemetery where Lucinda Sedgwick is buried
I found them at Salt Lake City on Saturday, July 20, 2002. What did I do with those notes?

5. Floyd County, Indiana Index to Marriage Records R-Z Book 1 Vol 4 1845-1920
found at GenealogyLibrary.com, also available LDS Film 1266794 Items 6-7
these records:
Groom/BrideSpouseDate of MarriageBook/Page
Sedgewick Thomas DPricilla TuleyJune 5 18615/259
Sedgewick RoseJames BruckerNov 12 189110/72

6. Military Service or Pension Records
a. Pension Records of Thomas Duncan Sedgwick, complete file obtained by Chuck Downen from NARA

7. American Civil War Soldiers an Ancestry.com database

8. Memphis Shelby County History and Genealogy Indexes on the Internet: Death Certificates
online at http://history.memphislibrary.org/
SEDGWICK THOMS D
Date of Death 07/04/1920, Age 59Y 4M 17D, Sex M, Race W, File 2004

9. California Death Index California Death Index, 1940-1997
an Ancestry.com database
this record:
SEDGWICK PRISCILLA
b. 12 Aug 1903 Texas d. 12 Mar 1946 Los Angeles County MO:-- FA: SEDGWICK

Questions? Have more data? genealogy@sedgwick.org