Hello Dave,
This is where I got the info re Elizabeth's death after 1841 census:
The Monumental Inscriptions in The Church and Churchyard of Charing, Kent.
By Leland. L. Duncan. Noted September 1920.
Church Yard - Section B by South Transept and East of Porch.
106. Richard SLAUGHTER of this parish, 17th September 1811 aged 35. Left issue by Elizabeth his wife three sons and two daughters: Thomas, Alfred, George, Ann Hyder and Eliza. Sudden was the stroke and severe the blow. Also two sons Richard and William died young. Elizabeth wife of above Richard Slaughter, 23rd April 1842 aged 70.
Elizabeth's parents:
Section B by South Transept and East of Porch.
102. Ann wife of Thomas HYDER of this parish, 9th July 1795 aged 64, leaving issue two sons and four daughters: Richard, Thomas, Mary'Ann, Catherine and Elizabeth. Thomas Hyder, 1st November 1813 aged 81.
Regards,
Dave