1918 – Robert was born February 22th to Harold F. and Addie (Johnson) Wadlow on Monroe Street in Alton, Illinois, weighing 8.7 pounds.
1919 – Robert began to walk he weighed 40 lbs.
1923 – At 5 years of age, attending kindergarten, Robert was 5′ 6 1/2" tall. He wore clothes that would fit a 17 year old boy.
1928 – Robert weighed 210 pounds and was 6′ 5" tall. His shoes were size 17 1/2.
1929 – Robert takes his first airplane ride.
Just before his 12th birthday Robert had his first checkup at Barnes Hospital (St. Louis), where the family learned of his over-active pituitary gland that caused his fantastic growth.
1929 – Robert sold magazines to earn money for a savings account.
1931 – The banks failed, and he lost his savings. He gave up the magazine business.
– At the age of 13, and a member of the Boy Scouts, he was the largest Boy Scout in the world. His weight was 270 pounds, and his height was 7′ 4". It took 14 yards of 36" wide material to make his Boy Scout uniform.
1933 – Robert received the largest birthday postcard ever delivered by the Alton Post Office. It measured 14" x 22".
– Robert attended the World’s fair in Chicago. It took two turns and 20¢ to get Robert through the turnstile.
1935 – Robert became Advertising Manager of the Tatler – Alton High School Year Book.
1936 – Robert enrolled in Shurtleff College.
1937 – Robert and his father made an extensive trip west, including Hollywood and most of the western states, as a goodwill ambassador for International Shoe Company. Thereafter, the firm made his shoes free of charge.
1940 – Robert Wadlow died on July 15th. His weight was 490 pounds, his height was 8′ 11.1". He was buried July 19th in Upper Alton Cemetery.