Endres was born as Babette Wiedenhammer in Bayreuth, Bavaria on 1 August 1910. She had nine siblings, most of whom lived to be nonagenarians. She married and had a daughter, Traudl. Her occupation was a clerk at Nähmaschinen-Hensel.
Endres’ husband worked as the chief inspector at DKV. He died in 1967 or thereabouts. At the age of 52, Endres had her appendix removed.
Until the age of 97, Endres would visit her daughter, her two granddaughters Birgit and Sybille, and her two great-granddaughters Nadine and Selina in Friedrichshafen, Baden-Württemberg, the journey eventually becoming too much for her. She still lived independently at the age of 107 in her parents’ home. Her daughter would visit her every six weeks.
Endres died on 12 January 2023 at the age of 112 years, 164 days. She was living in Bayreuth, but died in Friedrichshafen. After Maria Aulenbacher and the aforementioned Charlotte Kretschmann, she was the third-oldest German upon her death; she was also the 10th-oldest woman to die in Germany.