As a museum, Eldon House offers tours and programming including yearly events such as Canada Day, Victorian Christmas, and in city-wide celebrations of heritage and culture.

The pair married in June 1815 and had twelve children; ten survived and grew up in Eldon House.

Lucy eventually inherited Robertson's fortune and the contents of the Ronalds family home in Brentford, England.

Ronald was a graduate of the Royal Military College of Canada and worked as a mining engineer in Greenwood, British Columbia (1900–1); Quebec; Mossammides, Angola West, Africa (1901–03); East Africa Syndicates (1903–4); and Cassinga Concessions, Angola (1905–8).

After the death of George Henry Ronald Harris's sister in 1959, his children donated the house and gardens to the City of London.