I suspect that was a self-published book then, without the author registering it anywhere for copyright, etc., because there is no Library of Congress record of it that we can find. You'll have to keep your eyes open on places like eBay and Bookfinder (I also went there, before logging on to WorldCat). And since it appears she worked with a publisher on Vashon Island (Washington) you might want to check with some of the Seattle Song Circle and Vancouver Song Circle folks.