Oscar Eckenstein was born on 9 September 1859 and became a renown climber and mountaineer, being a pioneer in the sport of bouldering. He invented the Eckenstein crampon and was the leader of the first serious attempt on K2 in 1902.
It is not known why Eckenstein developed his interest in Richard Burton but he collected avidly. Eckenstein married Margery Edwards in 1918 and they lived in Oving, West Sussex. He died of TB in 1921.
P. E. Roberts worked at some time with Sir William Wilson Hunter in compiling statistics regarding India. He completed the second volume of Hunter's A history of British India after Hunter's death. Roberts was a Fellow of Worcester College, Oxford, teaching history, and was part of the College's governing body in 1936. He authored books about India.