Anna Washburn was born in Pawtucket, Rhode Island, in 1888, the daughter of Russell and Grace (Wilde) Armington.  She spent her early years in Pawtucket, when in 1900 she was the eldest of four children.
Anna was admitted to The Hospital Cottages for Children in Baldwinville, Massachusetts, when she was 12 years old, with epilepsy. She was a patient for 4 years, but was still considered "not improved" when she was discharged to her home on October 2, 1905. 
At the time of the 1910 census, she was an inmate at the State Hospital for the Insane at Cranston, Rhode Island. [Epilepsy was frequently treated as a mental health illness at that time.]
She died at the State Hospital the following year. She was 22 years old. She is buried at the Mineral Spring Cemetery.
↑ "United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M9WQ-4LG : accessed 4 August 2019), Annie W Armington in household of Grace R Armington, District 2 Pawtucket city Ward 4, Providence, Rhode Island, United States