Both Leroy and Frances wrote stories for the "pulp" science fiction magazines Amazing Stories and Fantastic Adventures. These magazines were published by Ziff-Davis out of Chicago, IL. By the early 1940s, Palmer, the managing editor of these publications, had developed a stable of local (Chicago-based) writers who could write to order, often producing stories around cover paintings by Harold McCauley, Robert Gibson Jones, or Malcolm Smith. The mainstays were Don Wilcox, Robert Moore Williams, David Wright O'Brien, William P. McGivern, Leroy Yerxa, and David Vern, plus (later in the decade) Chester S. Geier, Berkeley Livingston, and William L. Hamling.
Leroy Yerxa was among the most prolific contributors to the Ziff-Davis magazines. He was twenty-seven years old when his first story, "Death Rides at Night," appeared under his own name in the August 1942 Amazing. In the next four years, till his untimely death in 1946, he sold more than seventy stories to Palmer for Amazing Stories and Fantastic Adventures, with many of those published pseudonymously. He is rumored to have written an entire issue of Fantastic Adventures (possibly the one for December 1943). While other writers wrote more, their output was not concentrated in such a short, intense period. Possibly Yerxa's only rival in this regard was David Wright O'Brien, who in the five years from 1940 through 1944 sold more than a hundred stories to Palmer, not counting his collaborations with McGivern.
Palmer's core of writers were so prolific that they could fill every issue. To avoid the frequent recurrence of names, the authors used various personal pseudonyms, some of which were later adopted by other authors. For instance, "Lee Francis" began as a pen name of Leroy Yerxa's (which he often used when his wife Frances published a piece under her own name in the same edition), but after his death in 1946 it was used by others, including Hamling. In addition, a practice began of creating a number of "house names." The house names were used by several writers, so that we had the authors using several names and several authors using the same name.
Leroy Yerxa died and, after a reasonable length of time, William Hamling, who had been a good friend as well as colleague, proposed to Frances Yerxa. Frances, who had already made a name for herself as a writer with her material appearing all over the place, accepted Hamling's proposal and Hamling assumed responsibility for Yerxa's sons Edward and Richard, and began raising them as his own. Then, Bill and Frances had two children, a daughter Debbie and Billy Jr. They lived in Evanston, the north contiguous suburb of Chicago, on Fowler Avenue in a nice, comfortable house.
One-Way Ticket to Nowhere (1942)
Oliver Performs a Miracle (1942)
Louie's Cat Eye (1942)
Death Rides at Night (1942)
Corporal Webber's Last Stand (1942)
Warrior Maids of Libya (1943)
Valley of the Black Sun (1943)
The Spirit of Egypt (1943)
Spawn of the Glacier (1943)
Queen of the Flaming Diamond (1943)
Phantom Transport (1943)
Phantom Commando (1943)
Nazi, Are You Resting Well? (1943)
Lost Legions of Carthage (1943)
Johnny Rain-Maker (1943)
The Garden of Hell (1943)
Freddie Funk's Madcap Mermaid (1943)
Bridge of Banishment (1943)
Pearl-Handled Poison (1943) [as Richard Casey]
The Wooden Ham (1943) [as Morris J. Steele]
Witch of Blackfen Moor (1943) [as Lee Francis]
Stone Goddess of Yunan (1943) [as Lee Francis]
Shadow of the Spider (1943) [as Lee Francis]
Daughter of Destiny (1943) [as Lee Francis]
Citadel of Hate (1943) [as Lee Francis]
Heroes Die Hard (1943) [as Henry Gade]
You Can Say That Again (1943) [as G. H. Irwin]
Cloak of Satan (1943) [as Frank Patton]
Trick with a Brick (1943) [as Elroy Arno]
Mistress of the Dark (1943) [as Elroy Arno]
Jones Gets the Willies (1943) [as Elroy Arno]
Jones Buys War Blondes (1943) [as Elroy Arno]
Jenny - The Flying Ford (1943) [as Elroy Arno]
Professor Cyclone (1943) [as Alexander Blade]
A Thought in Time (1944)
Crossed Wires (1944)
Bury Me Deep (1944)
Hitler's Right Eye (1944) [as Lee Francis]
Appointment with the Past (1944) [as Lee Francis]
The Story Escapes Me (1945)
Mysterious Crater (1945)
The Lying Lie Detector (1945)
Dummy of Death (1945)
All Kinds of People (1945)
Tears for the Crocodile (1945) [as Lee Francis]
Cursed Cavern of Ra (1945) [as Lee Francis]
Comet from Yesterday (1945) [as Lee Francis]
Change for the Bitter (1945) [as Lee Francis]
Two Worlds to Conquer (1945) [as Elroy Arno]
Is This the Night? (1945) [as Alexander Blade]
Through the Asteroids - To Hell! (1946)
Taming of the Tyrant (1946)
Side Street (1946)
The Man With Two Minds (1946)
Double for Destiny (1946)
The Cosmic Sisters (1946)
Anything You Say, Dear (1946)
Moon Slave (1946) [as Elroy Arno]
Warlord of Peace (1947)
The Emperor's Eye (1947)
Carrion Crypt (1947) [as Richard Casey]
When the Spirit Moves Me (1947) [as Lee Francis]
Secret of the Yomar (1947) [as Elroy Arno]
Perfume for a Princess (1947) [as Elroy Arno]
Meet My Mummy (1947) [as Elroy Arno]
Phantom of the Forest (1948) [as Lee Francis]
Forgotten Hades (1948) [as Lee Francis]
You Bet Your Life (1948) [as Elroy Arno]
The Strange Tea of Ting Sun Fu (1949)
The Chemical Vampire (1949) [as Lee Francis]