Blanche Henrietta Johnes Shelley

Blanche Henrietta Johnes Shelley Pechell (15 December 1835 – ) was a British photographer and writer.

Blanche Henrietta Johnes Shelley was the daughter of Sir John Villiers Shelley, 7th Baronet and Louisa Elizabeth Anne Knight. She was a distant relative of photographic pioneer Henry Fox Talbot and her family became involved in early experiments with photography. Her only surviving photograph, Ferns and Daffodil, dates from 1854.

She married genealogist Hervey Charles Pechell in 1874.