I would suspect a mother and daughter. The one standing looks much younger than the one sitting.
The wheels are awesome!
TWO YOUNG LADIES! Hells bells they must be in their late 90's by now if not more!
But judging from the picture, they haven't aged a bit!
Here they are today!
Actually, this is the MTFCI magazine editor, Natalie Weaver, and her sister in the sister's Speedster. They both grew up in a Model T family. This pic was taken on a recent HCCA tour.