Cannan family.

Cannan sisters were three daughters (initials: M.D.C., M.W.C., and J.M.C.) of an official at the Oxford University Press. They edited a book of poems for children entitled "The Tripled Crown" because 1) collection included poems from three countries 2) arms of University of Oxford (where they lived) is partly composed of three crowns 3) three sisters edited the book.

From the description of Material relating to The tripled crown, 1908-1910. (Unknown). WorldCat record id: 83634354