Yes, they are "mother and child", Leslie.
I noticed your picture, and actually sent a link to the person who asked me to get the information for her, Jan, and also contacted Brett (I see he was the only one with it in his 'plant list'), hoping he had some photos.
This deal really illustrates some of the ID problems one runs into.........."Mother and child" irises (or sibling irises, in some cases) with only a slight difference in beard color, and width of the falls (at the haft), so, with out *accurate* descriptions and *good* close-up photographs........you are left with trying to grow BOTH, for a close examination !