There is insufficient information to write a detailed article about the Amity Childrens Theater as a US nonprofit organisation. The search results do not provide specific details about this organisation, such as its mission, history, or notable activities. Therefore, I cannot create an article in Wikipedia style based on the available information.

[1] https://www.childrenstheatrefoundation.org [2] https://www.orangetownnews.com/news/amity-creative-theater-premieres-disneys-the-little-mermaid [3] https://amitysocietyoffreeport.org/amity-partners/ [4] https://www.amityfdn.org [5] https://www.amitytheaterdepartment.com