Memento handmade by Everett and presented to his "Mamma", perhaps at Thanksgiving.
Because the memento was found in a Bible that originally had belonged to George Claypool Rittenour and his wife Elizabeth Catharine (Sargent) Rittenour, I believe Everett was their grandson, son of Henry Francis Rittenour and Eliza Alice (DuBois) Rittenour of Pike County, Ohio.
See another post that features the obituary of Everett's paternal grandmother, Elizabeth Catherine (Sargent) Rittenour, who died at Chillicothe, Ohio on July 29, 1911.
It's comprised of brown outer paper and three pieces of white lined paper, with poem phrases. The first interior page is stained from the adjacent brown piece.
From brief online research, hopefully correct - corrections and additions requested:
Everett Francis Rittenour, according to an entry in the Bible, was born in Pike County, Ohio, on August 17, 1896. According to his informative Find-a-Grave memorial, Francis married Olivia Cameron Roberts and had several children. He was a vice president of People's Broadcasting Corporation. He died in 1957 and is buried in the Mound Cemetery at Piketon, Ohio.
The Bible has information going back as far as the births of his great grandparents Jacob Rittenour and Ann (Claypool) Rittenour, who were born in Virginia, in 1787 in Frederick County and 1790 in Randolph County respectively.