During the First World War, Wigg served with the British Army and saw active service at Gaza.
He also had studios at The Thatched House, Brundall, his parents' home, and at Rose Cottage, Barton Turf.
[1] Wigg was a landscape artist working mostly in watercolours and as an etcher, with only occasional paintings in oils.
The Norfolk coast and scenery of the Broads gave him the subjects for his work, and his etchings were mostly of boats.
He exhibited regularly at the Norwich Art Circle between 1909 and 1936, at the Royal Academy in 1915 and also with the British Water-colour Society.