New Arthurian Encyclopedia, ed. Norris Lacy (1991), Garland Publishing, New York and London.
Western Alumni Gazette, Volume 69, Number 3, Spring 1993
CANSCAIP News: Volume 10, Number 3, Fall 1998
Something About the Author, Volume 62 (Gale Publishing,1990)
"The First and Last Love: Morgan le Fay and Arthur" by Raymond H. Thompson, in The Arthurian Revival: Essays on Form, Tradition and Transformation. ed Debra N. Mancoff. New York and London, Garland, 1992
Exerpt
Emergency Librarian: November-December 1993, Issue 21 Number 2.
"Cetacean Consciousness in Katz's Whalesinger and L'Engle's A Ring of Endless Light" by J.R. Wytenbroek, Paper delivered at the Mythopoeic Society's Conference in Oxford, England, July 1992
"Mad voices: the mothers of Welwyn Wilton Katz" by Adrienne Kertzer in Canadian Children's Literature (CCL), # 77, 1995
"Constellations of Identity in Canadian Young Adult Novels" by Cornelia Hoogland in Canadian Children's Literature #86
Inkshed, Volume 13 #5,York University, North York, Ontario.
Contemporary Authors, Volume 154
Twentieth-Century Children's Writers, edited by Laura Standley Berger, St. James Press, London, England, 1995.
Who's Who in Canadian Literature, Reference Press, Teeswater, ON.
Canadian Who's Who: University of Toronto Press Inc., Toronto, ON.
World Who's Who of Women. (International Biographical Centre, Cambridge, England.)
International Leaders in Achievement. (International Biographical Centre, Cambridge, England.)
Children's Literature Review: Volume 45. ed. Linda R. Andres. (Gale,1998, Detroit.)
Something About the Author Autobiography Series Volume 25. Linda R. Andres, editor. (Gale, 1998, Detroit.)
"When is a book not a book? The novels of Welwyn Wilton Katz" by Marianne Micros, Canadian Children's Literature (CCL) Volume 47, 1987
"My Books are My Children.... " in Canadian Children's Literature Volume 90, 1998.
"Shedding Light on Out of the Dark: Five grade 5 students interact with a MYRCA novel and its author" by Valerie Nielsen, Manitoba School Librarians' Association Journal, January, 1998.
Read it here.