I have come across these publications:
In “An Austrian Theory of Spatial Land,” Fred E. Foldvary addresses the disregard of spatial issues in basic Austrian economic theory as formulated by Carl Menger (1871) and elaborated upon by Ludwig von Mises (1940). Foldvary shows that Johann Heinrich von Thünen (1826) and Henry George (1879/1884), in particular, serve to fill these gaps in the classical Austrian theory of the market process.
Henry George and the Austrian Economists (Oscar Johannsen, 2003)
This article states that Rothbard had a Lockean view of property in land:
every man has the absolute right of property in his own self and in the previously unowned natural resources which he finds