Norma Tadlock Johnson has lived primarily in Washington, Oregon, California and Mexico.

While residing with her husband on Camano Island, WA, she was active on a local water board, where the startling acrimony experienced among members, along with the perpetual battling of slugs in her garden, inspired her to write Donna Rose and the Slug War.

Norma's publishing history began with four romance novels co-written with her daughter, Janice Kay Johnson (herself a multi-published author of books in the romance, historical mystery, young adult and picture book categories). These were followed by two romantic suspense novels on her own (Walker and Co). She then switched to writing for middle-grade children, and published the well received Bats on the Bedstead (Houghton Mifflin; Avon Camelot) and The Witch House (Avon Camelot). More recent work includes a non-fiction history of the 10th Mountain Division of World War II titled Soldiers of the Mountains.

Norma's hobbies include reading, gardening and swimming. She graduated from Broadway High School in Seattle, Washington, and has been named to its Hall of Fame. A Cum Laude graduate of Washington State College (now University), she did graduate work at Mexico City College (now University of the Americas). A widow, she now resides in Burlington, Washington. Besides her daughter, Janice, Norma has a son, Karl, and three granddaughters.