He went back to England in 1867, and returned and married Elizabeth Caroline Hall (1841–1934).

[2] Since Greenwell served as Postmaster, the town that grew up around the store was known as Kealakekua, Hawaii, even though the actual traditional land division of that name is further south.

[3] On May 22, 1978, the store was added to the National Register of Historic Places listings on the island of Hawaii as site 78001017.

The store was added as site 10-37-7243 to the state of Hawaii registry of historic places on August 17, 1991.

[4] Another nearby Greenwell property, the Kona Coffee Living History Farm, is also open for tours by the society.