Who Was Lyle G. Boyd? :Co-author with Dr. Donald H. Menzel

According to the Science Fiction Encyclopedia (SFE: Ellanby, Boyd (sf-encyclopedia.com)( the name "Lyle G. Boyd" was the "Joint pseudonym of Lyle Gifford Boyd (1907-1982) and her husband William Clouser Boyd (1903-1983), the latter a professor of immunochemistry at Boston University, Massachusetts. They began to publish work of genre interest with Category Phoenix (May 1952 Galaxy; 2010 ebook), continuing to a total of fourteen stories in various contemporary SF Magazines until 1958, as well as a small number of essays for such magazines 1958-1959. The Star Lord (June 1953 Imagination; 2010 ebook) interestingly recasts the 1912 voyage of the Titanic as sf, with the titular Spaceship on its maiden voyage running into a Hyperspace iceberg-analogue known as the Thakura Ripples. On one occasion – the authors' final published tale, "A Toothache on Zenob" (October 1958 If) – the Ellanby byline was printed as Boyd Ellanbee."

Apparently, both wrote nonfiction under their own names. "William C Boyd collaborated with Isaac Asimov on the popular-science title Races and People (1955) (see Race in SF) while Lyle G. Boyd collaborated with US astrophysicist Donald H Menzel (1901-1976) on the highly skeptical UFO study The World of Flying Saucers (1963). [DRL]"

This is very fascinating - Lyle G. Boyd is referred to as "Mrs." in editions of newsletters from two UFO groups of the time period.  William C. Boyd was an immunologist. His wife's name was  Boyd, Lyle Ardetia Gifford, Birthplace: St Joseph, Buchanan County, Missouri, USA 1907-1982. Summary Bibliography: Lyle G. Boyd (isfdb.org).

The couple may have written using a common surname of Boyd Ellenbee for joint fiction projects. Another resource indicates they published a work on eugenics using both William C. and Lyle G. Boyd.  

Little as to her educational background or experiences beyond the writing has been located to date. It is interesting that Menzel would have partnered with a science-fiction writer to produce this updated version of his first book on unexplained objects in the skies.

Especially, since 1957 to 1962 the Air Force, and especially its spokesperson Tasker is denouncing NICAP's head, Keyhoe as a mere "science fiction" writer.