Hi BarossaPearl,
A Big Welcome to RootsChat.

Perhaps Robert and Mary may not have been married. There are two listings for Williams Birth which are linked
DAGENHARDT William Chales born 2 July 1882 Adelaide Dist Ade Symbol X 285 465 parents Robert DAGENHARDT and Mary FISHER
FISHER William Charles born 2 July 1882 Adelaide Dist Ade Symbol X 285 465 parents Robert DAGENHARDT and Mary FISHER
This would explain the use of the name FISHER, though siblings only registered as DEGENHARDT
Siblings listed to Robert DEGENHARDT and Mary FISHER unless otherwise stated
Caroline Mary 31 Aug 1875 Adelaide Dist Ade Symbol V 155 415A (Mother listed as Mary Louisa FISHER)
Robert 13 Jun 1879 Adelaide Dist Ade 220 206
Ann 9 Aug 1881 Adelaide Dist Ade 264 391
Robert 19 Aug 1888 Adelaide Dist Ade 422 77 (M = Multiple Birth) (Mother listed as Mary Louisa FISHER)
Walter 19 Aug 1888 Adelaide Dist Ade 422 77 (M = Multiple Birth) (Mother listed as Mary Louisa FISHER)
Cheers Kris
