Sir Archibald Lucas-Tooth, 2nd Baronet
Sir Archibald Leonard Lucas Lucas-Tooth, 2nd Baronet (3 June 1884 - 12 July 1918)
He was born on 3 June 1884 to Sir Robert Lucas-Tooth, 1st Baronet and Helen Tooth, the youngest of three sons. Both his elder brothers were killed in action during the early part of the First World War.
He married Rosa Mary Bovill on 4 January 1916. She was the daughter of Charles Arthur Bovill and Penelope Magdalen Sclater-Booth. They had two children: Rosemarie Helen Lucas-Tooth (1916-?); and Christine Leonard Lucas-Tooth (1918-?). On the death of his father on 19 February 1915 he succeeded to the title of 2nd Baronet Lucas-Tooth, of Queen's Gate, Kensington and Kameruka, New South Wales and to the family estate at Holme Lacy. 
He was a Major in the service of the Honourable Artillery Company. He fought in World War I and died on active service of pneumonia on 12 July 1918 at the age of 34. As neither he nor his brothers left any male heirs the title therefore expired with him. Lady Rosa remarried in 1923 and Holme Lacy was sold.
- "Kameruka - History of the Tooth Dynasty in Australia". Australian Broadcasting Corporation. Retrieved 2010-11-28.
- "Baronetcy Wiped Out". Poverty Bay Herald. July 16, 1918. Retrieved 2010-07-04.
Major Sir Archibald Lucas Tooth, of pneumonia, on service to France. As deceased was the only surviving son of Sir Robert Lucas Tooth, his two elder brothers having been killed in action, the baronetcy becomes extinct.