The area comprises approximately 14,500 acres (59 km2) of arable farms, dispersed buildings, and small settlements.

[1] In 1810 a late 17th- or early 18th-century wooden coastal vessel, the Sea Venture, was beached and wrecked during a gale on the marshes just north of Holbeach St Matthew, while trading between Whitby and London.

[2] Registered Holbeach Marsh electors entitled to vote in parliamentary elections for the Southern Division of Lincolnshire in 1841 numbered 18.

[4][5][6][7] By the 1870s the Marsh was a centre for yearly South Lincolnshire Fen-country hare coursing competitions under St Leger open meetings.

[11] Jane Cocking Glover and her family were resident at Holbeach Marsh prior to emigrating to the United States.