Andrew Liddell was the son of Rev. Francis Liddell, minister of the church of Scotland of Lauriston place Edinburgh. He arrived in Australia in January 1840 as Surgeon on the George Fife.

He was appointed to draft a set of rules for the new hospital at Maitland and was Chairman of the Maitland Benevolent Asylum during the 1840's

He performed and assisted in many surgical operations at Maitland Hospital.

In 1843 an account of one of his procedures was reported in the Maitland Mercury:

RESTORING A NOSE - This operation has lately been performed by Mr. Liddell, surgeon, of this town on a assigned servant of Richard Jones, Esq., Bolwarra. It is usually performed, as in the present instance, where accident of disease has destroyed a part of the nose, by dissecting a suitable portion of skin from the forehead of the patient leaving only a slender attachment, whereby its vitality is for a time maintained; this skin is then adapted to the edges of the deficiency, previously pared, in order to reduce them to the condition of a recent wound. When the operation is successful, union of the parts takes place in three or four days. By this operation, which is termed by surgeons the rinoplastic art, deficiencies of other parts of the body, as the lip, ear, etc have at times been usefully restored.

Margaret Liddell, wife of Andrew died in 1871 and Andrew Liddell died aged 71 in 1877.

Note** A Dr. Liddell with wife and child arrived in South Australia on the Glenswilly in 1839 with the intention of travelling on to Sydney. (possibly William?)