Castle Line References Castle Line British company Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of EncyclopƦdia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Sir Donald Currieā¦and politician, founder of the Castle Line of steamers between England and South Africa, and later head of the amalgamated UnionāCastle Line. Read Moreā¦and politician, founder of the Castle Line of steamers between England and South Africa, and later head of the amalgamated UnionāCastle Line. Read More