See https://www.historyforge.net/buildings/452 for this building. There are 3 generations of men named Nelson Hopper who lived at this address, which was an innovative farm; see https://ithacajournal.newspapers.com/clip/106619369/obituary-for-nelson-f-hopper-aged-56/ for this individual's father who died in 1931. This Nelson F. Hopper was born in 1915 and died in 1988; see https://billiongraves.com/grave/Nelson-F-Hopper/8760036. In the 1930 census he was recorded as Nelson F. Hopper, Jr. He was apparently not in Ithaca for the 1940 census, perhaps because he was posted elsewhere as a government employee or already serving in the Army. He and his wife Esther were married in November 1940; see https://ithacajournal.newspapers.com/clip/106617926/marriage-of-mandeville-hopper/
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