The description of this image suggests the building is most likely one of the dormitories housing girls at the Roman Catholic Mission at Garden Point. This photo is undated, the date included is an estimate.
This image is an aerial view of the mission at Port Keats.
This image shows housing at the Santa Teresa Mission in 1966, now Ltyentye Apurte. It is not certain whether or not these buildings would have housed the children in care on the Mission.
This image shows a mural on a building at the Daly River Mission. The exact purpose of the building and whether or not it housed children in care on the Mission is not known.