Looking for Savage Sergant of London

Looking for information on Henry Savage B:1797 in London, England.
Married Rebecca Sergant. They migrated to South Australia in 1840.
Arriving on the Fairlie on 7th July 1840. Rebecca died in 1842.
They had 7 children together; after the passing of Rebecca, Henry married Elizabeth Coombe nee Tuckerman. They moved back to Kapunda where Elizabeth (Betsy) had family.

Hoping someone could help with any information on this family.

Thanking you