Harriott Margaret Louisa Sedgwick  [Alfred Blair Sedgwick / Sophia Julia Bell
b. 1844, England1,2,4a
bp July 8, 1844 St James, Westminster, London, England4a
d. bef 19001
m. abt 1865, Ormsby Hudson1

Ormsby Hudson  [parents unknown]
b. January, 1837, Ireland1

Census records:

1860 NY Kings, Brooklyn
1880 KS Franklin, Ottowa
Widower Ormsby with daughter Harriott:
1900 MI Kent, Grand Rapids
1910 MI Delta, Escanaba

Ormsby and Hudson lived in Canada for a while, as their children were born there.

Children:

Ormsby A Hudson
  b. abt 1866, Canada1
Harriott E Hudson
  b. May 1870, Canada1
  d. November 21, 1910, Escanaba, Delta, Michigan7a
  bu Escanaba, Delta, Michigan, Lakeview Cemetery7a
  m. abt 1902, Andrew Phillips1
Charles N Hudson
  b. abt 1873, Canada1
Florence B Hudson
  b. abt 1878, Canada1

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)

7. Records of the Delta County (Michigan) Genealogical Society
a. Lakeview Cemetery, 2110 3rd Avenue South, Escanaba, Michigan
this record:
DeceasedFatherMotherCo BookFuneral HomeBloc Lot GravSexBorn DMYDied DMYCommentsDeath Age DMY
Phillips Mrs AndrewHudson OSedgirich, HenriettaB193AL000 00 J00F21 11 187321 11 1910Mrs AndrewCan0 0 37
b. (Delta County, Michigan) Marriages 1862-1927
this record:
NameSpouseMarriage DateBook & Page
Phillips, AndrewArmstrong, Christy2/24/12B344