Sara was born at the Delano Estate in the Town of Newburgh, New York to Warren Delano, Jr. and Catherine Robbins Lyman. Sara had ten siblings, two of whom died as small children. Three more died in their twenties.
In 1862, Sara, her mother Catherine, and six brothers and sisters traveled to Hong Kong on the clipper ship Surprise, where they joined Warren Delano who had resumed his business of trading in opium, then still legal. ↵On board ship, Sallie enjoyed spending time in the sailmaker's loft listening to the sailmaker tell sea stories. Her brother Fred discovered Catherine's journal of the voyage many years later, in 1928.
Sara Delano was described as a slender 5'10" (178 cm), and an intelligent debutante beauty in her youth.
She lived to see her only child elected President of the United States three times. His first election took place about thirteen years after the Nineteenth Amendment was ratified, and Sara became the first Presidential mother to vote for her son. Sara continued to support her son's career, even standing in as First Lady on several occasions. She was always prepared to say something positive about her son, and remained highly protective of him and his family.
Sara Delano Roosevelt, with the President at her side, died on September 7, 1941, 230 days after her son's third inauguration as President, exactly three months before the Japanese attack on Pearl Harbor, and two weeks before her 87th birthday. ↵"Minutes after her death, the largest oak tree at Hyde Park toppled to the ground. It was a clear windless day." (Quoted from; The American Experience: FDR (Part IV; "The Juggler" 1940-1945) (1994), Written & Directed by David Grubin).
The funeral was held at her home in Springwood, which is located in Hyde Park, New York. Her memory is commemorated with the Sara Delano Roosevelt Park in New York City's Lower East Side, which was dedicated during her lifetime, in 1934. 
"New York State Census, 1855," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K6Q3-NDY : 7 September 2016), Sarah Delano in household of Warren Delano, E.D. 3, Newburgh, Orange, New York, United States; citing p. 2, line #18, family #167, county clerk offices, New York; FHL microfilm 834,635.
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MSXM-BC5 : accessed 29 December 2017), Sarah Roosevelt in household of James Roosevelt, Hyde Park Township, Dutchess, New York, United States; citing enumeration district (ED) 11, sheet 7B, family 144, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,022.
Sara Ann Delano Roosevelt (1854-1941) on Find A Grave: Memorial #8510 retrieved 24 October 2018
Source: S133 Abbreviation: Chub, Methiable (David Cheney, Columbus) Title: Chub, Methiable (David Cheney, Columbus) Publication: David E. Cheney, Columbus, Ohio, descendant of Ebenezer Cheney and Sarah Jones. Paranthetical: Y
Source: S179 Abbreviation: www.fdrlibrary.marist.edu/children Title: www.fdrlibrary.marist.edu/children Text: www.fdrlibrary.marist.edu/children, accessed March 13, 2007 Paranthetical: Y