Knott's Berry Farm - Born in Le Grande, California, in 1895 — Happy birthday to Rudolph Boysen! The original propagator of the renowned boysenberry. It was Boysen who first crossed a blackberry,
Boysen Berry Farm | Orland CA
Up The Road: Knott's Berry Farm, Merry Farm & Scary Farm | NSPR
Larame Boysen | Start Something CALS
Boysen Berry Farm ready for pickers – Chico Enterprise-Record