In His Steps by Charles M. Sheldon. The subject of the book is What would Jesus do? It has no copyright but the Foreword was written in 1935. This book has had so many copies sold they say it is next to the Bible in the number of copies sold. The first publisher was not familiar with the copyright laws and therefore it has no copyright. But the publisher of the book I have recognized the moral right of the author and shared the sale of the books. That publisher was Grosset and Dunlap–publisher of many of the old books I have.
The Crucifixion of Philip Strong, by Charles M. Sheldon. This one also has no copyright.
Nina's blog 