Treganza (March 24, 1876 in Colorado – July 18, 1944 in San Diego, California[1]), was an American architect and ornithologist in the early 20th century.
Treganza trained at a technical school in Healdsburg, California, and then took architectural classes under William S. Hebbard.
In 1926 he moved with his family to Florida for a short time before returning to Lemon Grove, California.
[3] Treganza, with his family amassed a collection of 30,000 bird eggs from around the world that have since been portioned out into various museums.
[4] Treganza and his second wife, Antwonet Kaufman, were both active members of the Cooper Ornithological Club and she wrote a weekly birding column in the San Diego Union for many years between 1926 and 1940.