I would agree that it appears to be young specimens of the Eastern Banjo Frog (Pobblebonk) Limnodynastes dumerilii. The features mentioned by BrownHash plus the body shape (fairly deep body and slightly blunt snout with solid, moderate length limbs) are typical of Limnodynastes species. It has a mottled belly, so not L. interioris.
An exact geographic location, rather than just state, is often very helpful in determining the identity of species.
Blue