[3] Boult was the founder and honourary secretary of the Ivy Leaf Society, a vegetarian organisation that encouraged humanitarian principles to young people under the age of 17.

[6] The Society advocated compassion to both human and non-human animals with its motto: "I will not kill nor hurt any living creature needlessly, nor destroy any beautiful thing, but will strive to comfort and protect all gentle life upon the earth".

[5] Children from the Society went to Boult's house for meetings at Hilldrop Crescent, Camden Road, where they delivered songs and played games.

The magazine featured fictional stories, poetry, and non-fiction articles focused on moral guidance and vegetarianism.

Fats from nuts were used to replace lard and suet, there were vegetable substitutes for candles and soaps, boots without leather and imitation furs.

[12] Boult founded the children's section of the Vegetarian Society[13] and served on the General Council of the Order of the Golden Age.

The Vegetarian Federal Union published a new magazine that debuted in January 1906 under the title Children's Realm in honour of Boult.