Charles Pythian-Adam's appreciation of Hoskins's life and legacy was published in the Transactions of the Leicestershire Archaeological and Historical Society after Hoskins's death in 1992. You can read the full text here.
Hoskin's published much of his early research in TLAHS. It makes fascinating reading in its own right and it is possible to see his great themes, expounded in Making of the English Landscape, beginning to emerge.
You can download and read all of Hoskins's early works from the LAHS website, search the pre-War volumes for the majority of his work.