Lilian Marguerite Medland (29 May 1880 – 16 December 1955)[1] was an English-born nurse and Australian illustrator of books on birds.

She produced paintings to illustrate Gregory Mathews' books on Australian birds.

[1] In her late twenties, Medland became almost completely deaf as a result of an attack of diphtheria.

[1] Medland moved to Sydney, Australia in 1923, the same year she married Tom Iredale.

Ada Emmeline was a pupil at the school run by Lefevre James' wife, Lillia Messenger, in Hemel Hempstead, where Lefevre James taught art.