Though listed as an artist in drawing and landscape in the 1851 Census for Cornwall, he is listed as living at either 1 Regent Square, Madron or 1 Morrab Place, Penzance. At the date of census he was 20 years old and unmarried, the Falmouth-born son of Mary Marrack, innkeeper. Later he became a victualler; there is no further information on George Marrack, artist, currently available.
Drawing and landscape painting
Census of 1851 (GRO)
Hardie (2009) Artists in Newlyn and West Cornwall (p336)