Frances BonkerJohn James Thornber (1872-1962) was a renowned botanist and Frances Bonker is a respected author in the field of botanical studies. Thornber dedicated his life to studying desert flora, particularly Cacti, and his research laid the foundation for undrstanding and appreciating the unique plant life of the American Southwest. Bonker's expertise in botanical writing complements Thornber's scientific knowledge, creating a comprehensive guide for readers interested in the diverse world of cacti. Read More Read Less