Sidney Royse Lysaght (1856 - 1941)[1] (pronounced LYE-suht) was a British writer of Irish ancestry.
Thomas's father, William, was a small landowner at Hazelwood, Mallow, distantly connected with the Barons Lisle.
[4] Having travelled "extensively throughout Australia, New Zealand, and Polynesia", he visited Robert Louis Stevenson in Samoa in 1894.
[6] Lysaght married Katherine (died 1953), daughter of Joseph Clarke, of Waddington, Lincolnshire; their only child was Edward Anthony Edgeworth Lysaght (later known as Edward MacLysaght), writer and authority on Irish family history.
He also owned an extensive estate at Tuamgraney in County Clare, where he established a nursery industry.