Alfred Charles Sedgwick  [Alfred Blair Sedgwick / Sophia Julia Bell
b. November 1845, Lambeth, Surrey, England1,2,4a
m. June 16, 1875, Dearborn County, Indiana, Katherine Ann Paramore1,6

Katherine Ann Paramore  [Stephen Paramore1 / Catherine Ann Richardson1,6]
b. September 1850, Indiana1

Census records:

1860 NY Kings, Brooklyn
1870 NY Kings, Brooklyn
1880 KS Franklin, Ottowa
1900 MO Greene, Springfield
1910 MO Greene, Springfield
Katherine as child:
1860 IN Dearborn, Aurora

Katherine Ann Paramore appears also as Anna C and as Catherine A. Either of these spellings may be correct, either may be the correct given name.

Children:

Kitty H [Katherine Harriott?] Sedgwick
  b. abt 1876, Indiana1
  d. bef 19001
Alzora A Sedgwick
  b. November 1879, Kansas1
Josie M Sedgwick
  b. March 1884, Kansas1
Jeanetta H Sedgwick
  b. May 1890, Missouri1

There may be one more child; note that in the 1900 census Katherine reports 4 children, 3 living, and in the 1910 census she reports 5 children, 3 living.

Sources:

1. Census records, any of those indicated.

2. New York Passenger Lists, 1851-1891
an Ancestry.com database
Manifest of ship Margaret Evans upon arrival New York, October 18, 1851

4. SedgwickUK.org, by Nicky Cunningham
a. Web page for this family: Alfred Blair Sedgwick and a linked page
b. Transcript of Sedgwick Entries in English Marriage Registers 1837 TO 1846
these records:
[name]PERIODDISTRICTIGIPARTNERPARISHDATE
ALFRED BLAIR SEDGWICKDecember 1840St Jas Sq WestYHarriet NewtonWestminster (M147517)23/12/1840
c. Transcript of Sedgwick Entries in English Birth Registers 1847 TO 1850
these records:
[name]PERIODDISTRICTIGIFATHERMOTHERPARISH
SOPHIA ELLEN SEDGWICKMarch 1848St PancrasYAlfred Blair SedgwickSophia JuliaSt Pancras (C047935)
ROBERT BELL SEDGWICKDecember 1849MaryleboneYAlfred Blair SedgwickSophia JuliaSt Pancras (C047935)

6. Indiana Marriages, 1845-1920
an Ancestry.com database
this record:
Spouse 1Spouse 2Marriage DateCounty
Anna C ParamoreAlfred C Sedgwick16 Jun 1875Dearborn
Stephen ParamoreKatharine Ann Richardson27 Dec 1835Ripley