Alice Lee Roosevelt, daughter of President Theodore Roosevelt, was born Feb. 12, 1884. , Her mother was Alice Hathaway Lee
After her mother's death on Feb. 14th and her father leaving for North Dakota to get over his loss, Alice was cared for by her aunt, Theodore's sister, Anna Roosevelt, known as "Barnie", for two years, until her father remarried.
Many gentlemen wanted to court Alice but she selected an older gentleman, Nicholas Longworth III (a member of US Congress House of Representatives 1903 - 1931 from Ohio).
Alice married Feb. 17, 1906 in the White House. 
Alice and Nicholas had one child: Paulina Longworth (Feb. 14, 1925 - Jan. 27, 1957) who died of a drug overdose. Paulina had married Alex Sturm in Aug. 1944 ( he was born 1920 and died 1951). Paulina and Alex had one child, a daughter (only grandchild for Alice Roosevelt Longworth).
On Feb. 20, 1980, she died in Washington DC of emphysema, pneumonia, and cardiac arrest. She outlived her half-siblings at the age of 96
↑ "New York, New York City Births, 1846-1909," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:2WMS-RX6 : 11 February 2018), Alice Lee Roosevelt, 12 Feb 1884; citing Manhattan, New York, New York, United States, reference cn 389537 New York Municipal Archives, New York; FHL microfilm 1,322,188.
↑ "New York, New York City Municipal Deaths, 1795-1949," database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:2WJV-1Y9 : 2 June 2020), Alice Roosevelt, 14 Feb 1884; citing Death, Manhattan, New York County, New York, United States, New York Municipal Archives, New York; FHL microfilm 1,373,942.
↑ "Delaware Vital Records, 1650-1974," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:Q284-Z6MK : 20 May 2021), Alice Rosevelt in entry for Longworth, 1906; citing Marriage, Delaware, United States, Delaware Public Archives, Dover; FHL microfilm 5,099,502.
↑ "District of Columbia Marriages, 1811-1950," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XLQZ-VTT : 9 March 2021), N Longworth and Alice L Roosevelt, 17 Feb 1906; citing p. 227, Records Office, Washington D.C.; FHL microfilm 2,108,271.
↑ "Illinois, Cook County, Birth Certificates, 1871-1949," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKMW-9Q4Q : 18 May 2016), Alice Lee Roosevelt in entry for Paulina Longworth, 14 Feb 1925; Chicago, Cook, Illinois, United States, reference/certificate 5231, Cook County Clerk, Cook County Courthouse, Chicago; FHL microfilm
It may be possible to confirm family relationships with Alice by comparing test results with other carriers of her mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with Alice: