author
1869–1952
Best known by the pen name Dum-Dum, this early 20th-century writer published poetry with a playful, offbeat edge. His book Odd Numbers was issued in London in 1913, and the author’s note was signed "John Kendall."

by Dum-Dum
Little biographical information seems to survive in widely available sources, but Odd Numbers identifies Dum-Dum as the author and includes an author's note signed John Kendall. Archive records for the 1913 edition list the author as Dum-Dum (1869–1952), linking the pen name to those life dates.
What can be said with confidence is that he published Odd Numbers in London through Constable and Company in 1913. The surviving record suggests a writer who preferred a pseudonym and left more of a trace through his work than through public biography.
Because reliable sources on his life are scarce, many personal details cannot be confirmed from the material available online. For that reason, this overview sticks to the small set of facts that can be checked.