Dolly Sedwick  [Zadock Sedwick / Elizabeth Murphy]
b. abt 1815 Culpeper County, Virginia2a
m. March 29, 1838, Rappahannock County, Virginia, Alfred Cowgill4

Alfred Cowgill  [John Cowgill? / Elizabeth Corder?] (is he brother of Mary who m William?)
b. March 17, 1817, [Culpeper County, Virginia]2a
d. June 26, 1889, Rappahannock County, Virginia2a
bu Rappahannock Co., Virginia, Ramey Graveyard2a

Census records:

1850 VA Rappahannock
1880 VA Rappahannock

Children:

Mary E Cowgill
  b. abt 1840, [Rappahannock County, Virginia]2a

Sources:

1. Census records, any of those indicated.

2. Records of descendants/researchers of this family
a. Joyce H Tucker, records available online at FamilySearch.org, used with her permission
b. Chuck Sedwick, descendant of Zadock's son James Bushrod Sedwick

4. Virginia Marriages, 1740-1850
an Ancestry.com database
This record:
GroomBrideDateCounty
Alfred CowgillDolly SedwickMarch, 29 1838Rappahannock

Questions? Have more data? genealogy@sedgwick.org