Question: What is the name of this American botanist and inventor born in the 1860s, whose birthplace was Diamond, Missouri?
Sentence (from "Confederate Gulch and Diamond City"): In 1864 Confederate soldiers on parole from the American Civil War made a minor gold discovery in the gulch, but in 1865 the discovery of the sensationally rich Montana Bar—one of the richest placer strikes per acre ever made—led to other rich gold strikes up and down the gulch, and touched off a frantic boom period of placer gold mining that extended through 1869.
Relevant evidence: No