The stories are as follows: William is given a book entitled Things a Boy Can Do and annoys his entire household by trying to carry out its instructions, along with Jimmy, a cousin with a sister called Barbara.

A Quixote-esque tale in which "Sir William" and his faithful "squire" Ginger set out to rescue a "damsel in distress".

William takes up taxidermy as a hobby and puts a dead frog that he wishes to stuff in Uncle George's tea for 'Tannin'.

William is chosen as attendant to the May Queen (Evangeline Fish, a girl despises) in a school pageant, but he has bigger ambitions.

A grown-up friend of William has his life made unendurable by a new neighbour who is the President of the society of Ancient Souls.