Complex sentence: Louisa (married name, Mrs Timothy Jones) was a leading figure in the Melbourne social set in the 1930s and renovated the house to allow her to entertain on a lavish scale.
Split into simpler sentences: Louisa (married name, Mrs Timothy Jones) was a leading figure in the Melbourne social set in the 1930s. She undertook extensive remodelling and renovation of the house to allow her to entertain on a lavish scale.