since she says "we stayed two days in El Paso.
I don't know if this Carrie is the same Carrie Stammer from earlier but some how I don't think it is. Carrie Stammer's mother was a Ziegler. However,the card is addressed to Mrs. H. A. Ziegler, which makes me think it was a friend of Lillie Mae's or one of her relatives.
The postcard is postmarked DelRio, Texas on May 8, 1935 at 10AM.