Patrick Montgomery was born in Argyleshire in 1797. He was 34 years old when he was tried in Glasgow on 7th April 1830 and sentenced to 14 years transportation for forging notes. It is not known what happened to his wife and child.

He was received onto the Dolphin Hulk from Edinburgh on 17th May 1830, and transferred from the hulk to the convict ship Florentia for transportation to New South Wales on 4th August 1830.

The Florentia arrived in New South Wales on 15 December 1830 with 196 male prisoners. Four men had died on the passage out. On arrival Patrick Montgomery was assigned to work at Liverpool Hospital. His description was given as 5ft 8 in with a fair ruddy complexion, light hair and grey eyes

He was recommended for a Ticket of Leave for the district of Port Macquarie in September 1836 on the recommendation of the Patrick Plains Bench. The Ticket was dated February 1837.

His ticket was cancelled in April 1844 for being absent from his district of Liverpool Plains, although it is indicated that he was free by May of that year.  He placed a Notice in the Sydney Morning Herald in May 1844: - Mr. Peter Montgomerie, surgeon and Accoucheur, from Scotland, acquaints the ladies and gentlemen of New South Wales, that he will leave Sydney by the first steamer, giving advice gratis at Maitland, Anvil Creek, and all the townships on his way to New England, previous to his departure.

Dr. Montgomery was in Black Creek in November 1847. He set the leg of hawker Thomas Tonge who had been kicked by a horse earlier in the day. Tonge's cart had been upset four miles above Black Creek at a steep and narrow road leading to the river bed and after his injuries he was taken to Dr. Montgomery in Black Creek for treatment

In 1851 his address was Bukkulla, McIntyre River when he placed a notice regarding a horse missing from Nullammanna run New England. Bukkulla was the grazing of George Wyndham who resided near Maitland.

The following Notice was published in March 1852 -

Dr. Montgomerie, before retiring returns his sincere thanks for past favors to the inhabitants of New England, and hopes they will bestow the same patronage on his successor, Mr. James Watson who will be in attendance at his Residence, on the Macintyre River, as soon as he can arrange his affairs.

He was reported to be only visiting Sydney in November 1852 when he was called on to treat a patient and attend a subsequent inquest.

He died at the St. Aubin's Arms Hotel, Scone on 6th March 1860 and was buried in St. Luke's Churchyard at Scone.