I have an old 'stamp' photo album with pictures of individuals most likely living in the Yuma, Yuma County, CO area. The book is believed to have belonged to Lillian Briscoe Balderston. I have added it to my blog; www.familypursuit.blogspot.com if you want to look at the photo's. Lillian was born in 1900 and died in 1964. I would guess the pictures are between 1910 and 1930.