Henry Witham

Henry Thomas Maire Witham FRSE FGS (9 June 1779–1844) was a British landowner remembered as an amateur palaeontologist and mineralogist.

[3] Though having no botanical training, he applied William Nicol's method of examining fossils and rocks under the microscope by slicing them into thin sections.

Nicol's first published account of this process is contained in Witham's 1831 publication, Observations of Fossil Vegetables.

[4] Witham's findings were also published in his 1833 book The Internal Structure of Fossil Vegetables found in the Carboniferous and Oolitic deposits of Great Britain, illustrated by William MacGillivray.

[9] Their son Henry John Silvertop (b.1802) kept his father's original surname.