According to the SA Marriage Registrations, Frances gave her father's name as George HULBERT when she married Sylvester BADMAN in 1860, so looks like she may not have changed her surname when she married George.
The George HULBERT who died in 1873 age 89 could then be her father.
There is a George and Frances HULBERT in Devizes, Wiltshire in 1851. He was 70, a dairyman, can't make out his birthplace, but it was in Wilts. Frances was 60, born Bradford, Wilts. They were in the same place in 1841. 70 in 1851 is close to 89 in 1873.
On 29 Sep 1812 at Bradford, Wiltshire, a George HULBERT, wid, married a Frances HINTON, spin 21, botp.
There is a death of a Frances HULBERT in Devizes, Mar qtr 1857, when George could have come out to SA.
Ian C