Olga de Souza Caldas was born in Rio de Janeiro City, Rio de Janeiro, Brazil, on 24 September 1911.
In her 30s, she got married and moved to the city of São Gonçalo. She had three children. Her husband passed away just several years after the marriage. Until she got older, she would regularly attend church in São Gonçalo. As of 2019, only one of her children was still living; Maurício Antonio Caldas, aged 75.
Olga de Souza Caldas passed away in São Gonçalo, Rio de Janeiro, Brazil, on 14 March 2022, at the age of 110 years, 171 days.
Her age was initially listed as a pending validated by the Latin American Supercentenarians (LAS) as of 8 October 2021. The validation process was completed by Stefan Maglov and Gabriel Ainsworth, and her age was validated by LongeviQuest on 3 September 2023.
* “Parabéns em dose dupla: Idosa ‘adotada’ por São Gonçalo completa 109 anos no mesmo dia que a cidade” – O São Gonçalo, 22 September 2020