Minnie Huffman & Millie Spence, KS
Back of photo is written: Millie Spence & Minnie Huffman.
(because another picture of Millie Spense was found at same location - I suspect that Millie Spense is the one on the right and Minnie Huffman the one on the left.
Location: Washington, Kansas
Photo found at flea market -not my family line.