As with s2e1, Helen is seen wearing a pullover hooded jacket common for generations. While similar to a hoodie, they were made in canvas, wool, and rubber-coated cotton.
A search of the Australian on-line historical newspaper archive (Trove) reveals that the phrase "get it" (to indicate that something is understood) was in use by at least the 1910s (possibly earlier) so James Herriot's remark that he "gets" (understands) a farmer's attachment to the land is not an anachronism in the late 1930s.
In the final scene James tells Helen from his ladder perch that he now "gets it" regarding a farmer's emotional attachment to her farm. Doubtful that this use of "get" was current in 1938.