https://github.com/davepinch/pinchy.cc/blob/master/content/topics/conspiracy/gateway-process/analysis/sections/20/20-07.md
In mid-March 1926, Burbank suffered a heart attack and became ill with gastrointestinal complications. He died on April 11, 1926, aged 77, and is buried near the greenhouse at the Luther Burbank Home and Gardens.