From 1882 to 1897 he was employed by the Lands and Survey Department in many parts of Western Australia from Cambridge Gulf in the north to the Great Bight in the south.

At the time when he was selected to lead the Kimberley expedition, he was Controller of the Field Survey Staff.
Brockman was most successful in securing full information of this long-secluded region; of its geographical, geological, and botanical details.

Many interesting photographs were obtained of the different physical features and of the aborigines and their modes of life; amongst them being views of rock paintings similar to the mysterious scenes noticed by Grey during his first expedition to the Glenelg River.
[Illustration.

Aboriginal Rock Painting on the Glenelg River.

From a photograph by F.S.