In the artists' colony of Grez-sur-Loing, 70 kilometers south of Paris, there was a lady called Mère Moreau, also called "Gumman in Grez" by the Swedish artists. She was often used as a model by the Swedish artists, but also by artists from other countries living in Grez at the time, in the 1880s. The book will cover Mère Moreau with all the paintings in which she appears and biographies of the artists who painted her. It is a work in progress for many years - especially finding these works of art. I have also spent many years searching for information about Mère Moreau and have now managed to find everything I was looking for: where and when she was born, her parents, who she was married to, where she lived, what she did outside of modeling, and the year she died. I have also been collecting old photos and postcards from Grez for several decades which will be included in the book to get a clear picture of what the whole of Grez looked like at that time. Many of the photographs have never been published before.