Throwback Thursday

Which Sister is this picture? The two women in the picture were sisters. Their maiden name was Underwood.  Someone told me that the picture was of my grandmother.
Someone else identified it as my great-aunt.  Who do you is the likely candidate?

The sister on the left is my grandmother, Sadie Cole. 

The one in the right is Ethel Meeker.  

The men were brothers.  Carroll and Jean Underwood. 

This was taken in 1950 in California.

And the last picture is also of Mrs. Meeker in the famous H-Tree.  She was an adventurous person - drove her Chrysler to California when she was 80.

She also used to "Twist" and was pretty good about it.