Winthorpe was both an ancient parish, and a civil parish, until 1926 when it was abolished. A small part of it enlarged Addlethorpe parish, and the larger part of it enlarged Skegness parish. The manor belonged to Lord Monson.
The church is dedicated to Saint Mary and is a Grade I listed building dating from the 13th century, although most of it is 15th-century. Today St Marys forms part of the Skegness Group of Churches, which also includes: St Matthews, Skegness; St Clement, Skegness; St Peter and St Paul, Ingoldmells; and St Nicholas, Addlethorpe.
- "Vision of Britain". University of Portsmouth. Retrieved 4 May 2011.
- "Winthorpe". Genuki. Retrieved 4 May 2011.
- Historic England. "St Marys church Winthorpe (1229941)". National Heritage List for England. Retrieved 10 July 2011.
- "Skegness Anglican Church Group". Skegness Anglican Church Group. Retrieved 4 May 2011.
- Media related to Winthorpe, Lincolnshire at Wikimedia Commons