Available from - Huckarder Rosengarten
www.huckarder-rosengarten.de

I believe there is a photo of Martha Gonzales in the catalog from Antique Rose Emporium in Texas. The website is available through helpmefind.com's listing of nurseries that carry the rose.

There is a picture of Martha Gonzales in the book, Roses for the Southern garden. She is standing in front of her house with the rose.