The main significance of this record is that it provides corroborating evidence of a William & Mary Harvey of Torbryan, known to be the parents of Richard Harvey, who emmigrated to Newfoundland, and provides the a parish (Woodland) and a year (1851-67 = 1784) in which to search for baptism information on William. Son Henry's age matches the birth date for the son of William & Mary mentioned in the baptism records. I have not found a baptism record for a margaret, although the date corresponds with that of an Elizabeth, born 1825.

Arthur's Note: This should make the baptisms and the parents of William and perhaps
Margaret accessible, and you will quite likely find their marriage in
Broadhempston.  Woodland and Broadhempston are adjacent to Torbryan on the NW
and SW.

HO107/1851 folio 439 p4:

14. Torbrian Village. 

Name		Rel.	Status	Age	Sex	Occupation	Born
--------------------------------------------------------------------------
William Harvey	Head	Mar	67	M	Carpenter	Woodland	Devon
Mary Harvey	Wife	Mar	65	F			Broadhempston	do
Margaret	dau	U	25	F	Dressmaker	Torbrian	do
Henry		son	U	22	M	Carpenter	Torbrian	do

Rel = relation to head of household
Mar = married
U   = unmarried
do  = ditto