Complex sentence: When the quarry at Dinorwic closed in 1969, Alice's remains were still at the Australia gallery, however the wheels and underparts had been salvaged and these were sold as spares for her sister locomotive Holy War.
Split into simpler sentences: When the quarry at Dinorwic closed in 1969, Alice's remains were still at the Australia gallery. The wheels and underparts had been salvaged and these were sold as spares for her sister locomotive Holy War.