Don't think she was married but an Edward ? has been mentioned as a possible father to the children born up to 1889.
1871 CENSUS
https://www.ancestry.co.uk/interacti...69/edit/record
1891 CENSUS
https://www.ancestry.co.uk/interacti...68/edit/record
place of birth for 1891 has changed to born on the high seas!! but all the other census's give her right birthplace.