Sir Edward John Lees Hallstrom was one of Australia's best-known philanthropists and businessmen of the mid 20th century. Hallstrom is best known for his long association with the Taronga Zoo and for his "Silent Knight" brand of refrigerators.

Waterloo is an inner southern suburb of Sydney, New South Wales, Australia. Waterloo is located three kilometres (1.9 mi) south of the Sydney central business district and is part of the local government area of the City of Sydney. Waterloo is surrounded by the suburbs of Redfern and Darlington to the north, Eveleigh and Alexandria to the west, Rosebery to the south, and Moore Park, Zetland, and Kensington to the east.