Final answer:
The detailed information provided pertains to the Colored Farmers' National Alliance established in 1886, rather than the national FFA Alumni directly. The FFA Alumni's founding year is not mentioned and requires separate research.
Step-by-step explanation:
The national FFA Alumni, originally part of the broader Farmer's Alliance movement, was not referenced in the provided information which focused on the earlier Colored Farmers' National Alliance, itself a response to racially exclusionary policies. The Colored Farmers' National Alliance was established in 1886 due to the exclusionary policies of the Farmers' Alliance. Black farmers convened in Texas to form their own organization, which saw rapid growth, reaching up to a million members at its peak. The Farmers' Alliance was a significant precursor to other agricultural organizations, including the FFA (Future Farmers of America), which now includes the FFA Alumni. However, details regarding the specific founding year of the national FFA Alumni must be found through separate resources as the information provided exclusively discussed the alliances operating in the late 19th century.