If she married for the first time in 1838, then it will be registered. Marriages were listed from September 1837.

SARAH BASTABLE

Marriage quarter 4 Marriage year 1838

MarriageFinder™ SARAH BASTABLE married one of these people
JAMES CARTER, EDWARD COPE, THOMAS HUTTON, ANTHONY DORCY

District BIRMINGHAM

County Warwickshire

People often made up names for fathers if they were illegitimate. It saved embarrassment, My own gg grandmother had four children before she got married. Three of these married, and all named a father, but kept their own surname, in other words, they invented a father. On checking census returns, it is obvious that this man never existed.