] Danielson, one of the foremost authorities on the hybridization of Aril and Arilbred irises and a master judge from Region 23, died peacefully in the arms of his wife, Lu, in their home in Chaparral, New Mexico. Henry was born and reared on a farm in South Dakota. His interests as a youngster were gardening and the raising of egg-laying chickens. He was able to increase production by purchasing a pedigree male and breeding him to the best females in the flock. The male offspring were then bred to the entire flock to increase the egg production. This was Henry's first experience with genetics. When he was in his mid-twenties, he left the farm and moved to Chicago where he attended a Trade school. A few years later he renewed his interest iniris gardening. Starting with tall bearded irises, he soon branched into Arils which he discovered needed a different type of culture in a northern climate. Seeking advice from the suppliers of Aril stock and reading all the printed material he could find, he put his own abilities to work to solve problems and grew stock which became cold tolerant.
With goals in mind, he started hybridizing tall bearded irises with arils. Flirtation Waltz was his first introduction in 1962. Over the following years, he won numerous Honorable Mentions and Awards of Merit. Stars Over Chi- cago, Genetic Dancer, Bionic Burst, and Snow Over Chicago, all were voted the C. G. White Award. The Mohr Award was presented to Genetic Burst and Aril Lady. The American Iris Society Hybridizer Award
Medal for Achievement in Hybridizing in 1982. De Mouse is his latest creation and has produced seedlings which will create ripples in the iris world. Henry has worked a number of years on the Pacific Coast Native Irises which he has climatized for more gardeners to enjoy. Soft spoken Henry accepted his recognition by always crediting others who helped him to achieve his goals. He was a life member of the Aril Society International and received their award for Outstanding Aril of the Year in 1970 for Big Black Bumblebee [1, pp 5-6