Some info on Nell Fox and Pleasant Pasture Kennels, from The Dog Show: 125 Years of Westminster, Bill Stifel:

“1960: There was a startling entry in the Miscellaneous Class this year of 59 Australian Terriers. The class, in which no championship points were awarded and which was open to breeds not registered in the AKC studbook, usually had an entry of less than half a dozen. The turnout was the work of Mrs. Nell Fox of Pleasant Pastures Kennels, of Point Pleasant, N.J. She was said to have canvassed the entire U.S. to find 59 dogs with willing owners.

“Mrs. [Milton] Fox was a New Zealander who moved to the U.S. in the early 1900s. In 1945, she imported her first Aussies from England, where they had been registered since 1933. In time, she prevailed on Australian breeders to help her establish the breed here. It made its WKC debut in Miscellaneous in 1957. …

“1960’s record entry marked the end of Mrs. Fox’s struggle. AKC opened its studbook to the breed later that year. Aussies were shown for championship points in 1961.”