For generations that are PROVEN within your approved applications or supplementals.  Example:  son of your 3rd great grandfather, who was also a farmer.  Submit a copy of the approved application or supplemental that shows the generation and farmer proof to nsdoaf@gmail.com.  You will need an approved application or supplement for the generations linking  - Example:   an approved application for your 3rd great grandfather (farmer) and his son or his father as an approved  - both generations must be on proven applications.    This requires 2 approved applications OR supplements.