There were two authors; Hattie & Anne M. Wynn Laningham
book published 1977
It is in about a half dozen libraries across the USA according to WorldCat. Contact your local public library and ask them to find the book via inter-library loan. Generally there is no fee for this service. Generally your local library will be able to keep the book for two weeks before having to return it to the holding library. Successful Searching!