In 1835 he then settled first in Van Diemen's Land at his property Invermay, near Launceston, Tasmania.
Walter spent the rest of his life in Tasmania and died at his home, "The Mansion" in Canning Street, Launceston, in 1851.
[1] His numerous children included Julia, who married Henry Cole in Launceston, Monckton Synnot and George Synnot the well known squatters and wool brokers.
His daughter Jane married into the Manifold family.
He features in the famous 18th-century painting "The Children of Walter Synnot Esq" by Joseph Wright of Derby.