(I'm taking a risk.) Born in Wisconsin, she now lives in Chico, in Northern California.
https://sites.google.com/site/kindtmckenzie/about-the-author
(bio)
https://www.google.com/search?q=%22ellen+kindt%22+mckenzie+books&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiuiKbSlu3bAhXSpFkKHTSHAoIQ_AUICigB&biw=1280&bih=558
(book covers)
https://www.kirkusreviews.com/author/ellen-kindt-mckenzie/
(Kirkus reviews)
https://www.goodreads.com/author/show/229395.Ellen_Kindt_McKenzie
(reader reviews)
WRITINGS:
Taash and the Jesters - 1968
"An orphan boy who lives with a witch becomes involved in a dangerous
adventure, from which he eventually emerges as the brother of a
king."
Drujienna's Harp - 1971
Kashka - 1987
Preschool (?) book - "The son of a royal musician tries to prevent
Lady Ysene and her brother from using their evil powers to gain
control of the kingdom of Darai."
Stargone John - 1990
"John is a child who sees and hears and smells and feels things most
people don't. He and his invisible friend, the Meesong, travel to
places most can't imagine. John attends a rural, one-room school under
the tutelage of Miss Vordig, a tartar of a teacher who out of cruelty
or ignorance punishes him for his apparent lack of interest. He sits,
submits--but doesn't learn. Luckily his sister, who narrates, takes
him to visit a former teacher who is blind with cataracts and
supposedly a little peculiar. She becomes the shining jewel in John's
life; soon he is learning--in his own way."
The King, the Princess, and the Tinker - 1992
"For years, nobody has been allowed to look at King John, not even his
children; only sensible Rosilla has secretly disobeyed. Then as King
John is taking one of his rare forays to view his kingdom, his crown
falls off when his coach hits a bump; the tinker picks it up, thinking
it must be an odd sort of pot, and is soon mistaken for the king--
everyone has forgotten what he looks like. Though both tell the truth,
no one knows what to believe; the eldest prince receives the crown,
leaving former King John to enjoy getting acquainted with Rosilla, who
knows perfectly well who he is."
A Bowl of Mischief - 1992
"An abandoned child in the desert is found and taught by a holy man
whose teachings he mischievously resists, only to regret it years
later when he needs that wisdom as he finds himself in a battle of
wits with a fearsome villain."
Under the Bridge - (non-fantasy) 1994
"When Ritchie’s mother becomes ill and must live in a hospital, he is
left alone to put his life back together.It seems an impossible task
until he begins to receive mysterious letters from the 'troll' under
the bridge. . . . "
The Perfectly Orderly House - 1994
"A fastidious pack-rat all her life, an Old Woman decides she must
organize all her possessions-and what better way than alphabetically?
Her brother offers to help, and soon has built her a 'perfectly
orderly house' that sprawls into a monstrosity of rooms, each one
designated by a different letter. The plan seems a great success-until
the Old Woman has a party and the preparation and celebration
demonstrate the difficulties of the new household arrangement."
The Golden Band of Eddris - 1998
"As Anna dispatches son Keld and daughter Elylden off to the village
of Adnor, she gives each of them gifts they will need when they
confront the witch Eddris."
Lenona.