Final answer:
The first vintage of Penfolds Grange was created in 1951 by Penfolds' winemaker Max Schubert. The historical material provided relates to the Grange movement for agricultural reform, which is unrelated to the wine.
Step-by-step explanation:
The first vintage of Penfolds Grange was produced in the year 1951. However, the material provided about the Grangers and the National Grange of the Order of Patrons of Husbandry pertains to an entirely different context. The Grangers were a group dedicated to agricultural reform in the United States, beginning in the late 19th century. The Penfolds Grange mentioned in the student's question refers to a prestigious Australian wine. Its first experimental vintage was made by Max Schubert, the winemaker at Penfolds, and it has since become one of Australia's most celebrated wines.