From the Maitland Mercury report:
The Maitland Regional Museum has partnered with the Geological Survey of NSW and Friends of Grossmann House to tell the story of the Maitland men who laid down their lives as part of the Tunnelling Corps during World War I.
They are calling on the descendents of local members of the corps to help them shine a light on the amazing feats of the subterranean soldiers.
Full article available at Maitland Mercury,