[page needed] Several of Ronalds' eleven brothers and sisters also led noteworthy lives. His youngest brother Alfred Ronalds authored the classic book...

machines. Ronalds, B.F. (2016). Sir Francis Ronalds: Father of the Electric Telegraph. London: Imperial College Press. ISBN 978-1-78326-917-4. Ronalds, B.F...

ISBN 9780808749080. Ronalds, B. F. (2016). Sir Francis Ronalds: Father of the Electric Telegraph. London: Imperial College Press. ISBN 978-1-78326-917-4. Ronalds, B....

Hopkins. Ronalds, B.F. (2016). Sir Francis Ronalds: Father of the Electric Telegraph. London: Imperial College Press. ISBN 978-1-78326-917-4. Ronalds, B.F...

 485–486. Ronalds, B.F. (2016). Sir Francis Ronalds: Father of the Electric Telegraph. London: Imperial College Press. ISBN 978-1-78326-917-4. Ronalds, B.F...

invented around 1840 by Sir Francis Ronalds to help combat fire in London – he also named his innovation the "Fire Finder". Ronalds's fire finder comprised...

Australian National University, accessed 30 June 2013 Beverley F Ronalds, 'Ronalds, Albert Francis (Bert) (1913–1999)', Australian Dictionary of Biography, National...

telegraph. Ronalds, B.F. (2016). Sir Francis Ronalds: Father of the Electric Telegraph. London: Imperial College Press. ISBN 978-1-78326-917-4. Ronalds, B.F...

Thames Street, London. Her brothers included the inventor Sir Francis Ronalds, and Alfred Ronalds, who published a classic book on entomology for fly fishing...

triangular metal head was invented and first manufactured for sale by Sir Francis Ronalds in the late 1820s in Croydon. He sold 140 of the stands in the decade...