1792 birth Mary LANKSHEAR 1815 marriage Nathaniel  CREW at St Mary, Lambeth

Faculty Office Marriage Licence Allegations (1701-1850) 
from English Origins the original can be ordered at 10 pounds

07 Nov 1815 CREW Nathaniel LANKSHEAR M'y

Now IGI - no indication of parents - presumably an assumed date based on marriage

possibly 1798 Mary LANCASHIRE daughter of Robert & Sarah but Mary born North Leigh Oxford

BUT August 2003 identifed 1784 James Lankshear marriage Hester Fisher at Bermondsey - son of Thomas and Mary and daughter Mary

and James and Hester's Mary born between 1784 and 1792 believed in London is likely to be Nat's Mary

Mary Lankshear 
Birth: About 1794 Of, Battersea, London, England 
Spouse: Nathaniel Crew Family 
Marriage: 12 NOV 1815 St Mary, Lambeth, London, England 
Messages: 
Record submitted by a member of the LDS Church. The record often shows the name of the individual and his or her relationship to a descendant, shown as the heir, family representative, or relative. The original records are not indexed, and you may have to look at the film frame-by-frame to find the information you want. A family group record for this couple may be in the Family Group Record Collection; Archive Section. (See the Family History Library Catalog for the film number.) These records are alphabetical by name of the father or husband. 
Film Number: 459079

Mary Lankshear & Nathaniel Crew married 1815 and their family