John Inches' eldest daughter Mabella married Robert Pringle of Carrington Park in August 1837 while he was stationed at Port Stephens.
In April 1840 he announced that he had moved to East Maitland where he intended practising as a Surgeon and Accoucheur.
He is listed in the Sydney Herald in November 1840 as a Retired Officer making a land purchase of 1280 acres, the deed being dated May 1840. After his death, the land was offered for sale in two portions and described as: adjoining the village of Kempsey near Commandant's Hill, Macleay River, being the land John Inches retired Royal Navy surgeon was permitted to purchase without competition in consideration of his services
According to the notice placed in the Sydney Herald, John Inches died on Thursday, 2nd December 1841 aged 55, much and deeply lamented by a numerous circle of friends and relatives. He was buried at St. Peter's Cemetery, East Maitland.
His wife Mabella Inches was residing with her daughter and son in law Mabella and Robert Pringle in 1847. Mabella Inches died in October 1857 at Balmain - the Funeral to move from Mrs. Dalyell's Darling Street residence. John and Mabella Inches' daughter Mabella Pringle died in Sydney in September 1860.