No, it comes from the 1841, 1851 & 1861 Census entries for Thomas Brown & his family. Mary Ann was included in those for 1841 & 1851. She married John Cursiter Flett in 1857.
In 1841 the family was in Ayres Quay, Bishopwearmouth. Thomas was a bottle manufacturer.
In 1851 they were in Hill Field, Bishopwearmouth. Thomas was a glass maker.
In 1861 they were in Back Harrison Street, Bishopwearmouth. Thomas was a glass bottle maker.
If you also look in the England Select Marriages database on Ancestry you'll find that her father was recorded as Thomas Brown.