Gwynn was born in Mathews County, Virginia, USA, on 18 September 1908. At some point, she got married and had children.
Gwynn was an active member of the First Baptist Church of Mathews. Upon moving to Baltimore, she became one of the founding members of Gethsemane Baptist Church in the city.
Gwynn passed away in Baltimore, Maryland, USA, on 19 June 2019, at the age of 110 years, 274 days.
Her age was validated by LongeviQuest on 13 April 2024.
* “Meet Mrs. Matilda Gwynn, Momma Tillie” – First Baptist Church Mathews, 11 May 2015
* “Happy 110th Birthday Matilda Gwynn!” – WBAL-TV, 19 October 2018
* “MATILDA GWYNN” – Gazette Journal, 26 June 2019