(Born 1910, Died August 30, 2000)

He was married to Dora Frey-Schwyn, had three children, and lived in Ronco s/A in southern Switzerland, since the 1950s.

He was a dentist (Dr. med.) and also deeply involved in botany. He had a large garden on the southern slope of Lake Maggiore, in which he planted several botanical rarities. He also had many other less frost-hardy botanical rarities, which he overwintered in a greenhouse.

He had contacts with botanists and institutes worldwide and supported many institutes, botanists, and nurseries, as well as amateur botanists, with his knowledge and materials.

For example, he played a key role in the establishment and planting of the Botanical Garden on the island of Brissago. He inspired the Otto Eisenhut nursery in San Nazzaro in Switzerland to dedicate himself to Rutaceae and supported them with materials and knowledge, which enabled many hobby gardeners to obtain special citrus rarities that were unavailable anywhere else decades ago. Citrus grower Bernhard Voß had already come into contact with the Otto Eisenhut nursery and Dr. Edwin Frey early in his career, which also inspired him greatly.

In summary, it can be said that Dr. Edwin Frey, with his knowledge, contacts, and by sharing his botanical materials, inspired and supported many nurseries and institutes, thus contributing significantly to the growing interest in citrus plants among hobby gardeners. All this happened decades ago, in a time before the internet, and when people in temperate Central Europe had barely considered hardy citrus plants.