George Abercromby (1706-1776) was baptized 23 August 1706 at Fordyce Parish, Banffshire, Scotland, the sixth son of Sir James Abercromby (1668-1734), 2nd baronet of Birkenbog, and Mary Gordon.

George was trained as a physician. He settled in Mexico by 1746 after being in Jamaica in 1730 and Holland in 1744. In Mexico he failed at mining, then became a merchant while occasionally practicing medicine, which was made difficult because of the requirement for a license from the Spanish government.

In Mexico George married the only daughter of John Ingleby, the eldest son of a Yorkshire squire. John Ingleby had left Yorkshire and after many wanderings, like his son-in-law, became a member of the small group of British expatriates in the "ancient city of Mexico."

George had four children in Mexico: Alexander (1747-?) who became a Catholic monk; Mary Luisa (1748-?) who was raised in a convent in Mexico after her mother died in 1754; John (1752-?) who was called “Jacky” and became a captain in the Spanish army; and Robert (1753-1763).

Two years before his death, in his last letter to his brother, Sir Robert, George wrote from Mexico, "having allways in mind dulcis amor Patria [sweet love fatherland] and tho divine Providence has disposed my lot in these American Regions, yet must allways acknowledge that of all the countrys have seen, Europe is the best, & exceeds all other parts of our Globe."

George died in Mexico in December 1776.