George John Malcolm (1830-1884), was Sir Charles Malcolm's eldest son. He followed in his father's footsteps, serving in the Royal Navy for his entire career and becoming Rear Admiral in 1882. His long naval career took him to North and South America, the West Indies, the Baltic, the English Channel, Egypt, and the East Coast of Africa. During the years covered by his diaries, George Malcolm was employed in the West Indian Station, was involved in the bombardment of Sweaborg in the Baltic, and actions against the Russians in Estonia and off the coast of Finland. After he retired from active service in 1873, he entered the Turkish services as Pasha and was employed at Constantinople as Director General of the Abolition of the Slave Trade and Judge of the Slave Courts.