[1] In his teenage years, Klebs was one of Switzerland's pioneer bicycle racers.

[2] Klebs received a medical degree from the University of Basel in 1896, then moved to the United States to practice medicine.

[1] Given his long experience with the ailment, Klebs was named one of the first directors of the National Tuberculosis Institute.

[3] In 1910, he returned to his native Switzerland, and settled in a villa on Lake Geneva.

[1] In 1939, Klebs donated his collection of books to Harvey Cushing for its inclusion in what would become the Yale University's Harvey Cushing/John Hay Whitney Medical Library, where they were organized and curated by Madeline Stanton.