I wonder if this is worth following up.
Western Australian activity
A newspaper item which uses the name ANNI
S DANKS in a school awards article
http://trove.nla.gov.au/ndp/del/article/25713464?searchTerm="annie danks" -miss&searchLimits=
A marriage in which the name has reverted to ANN
IE DANKS
MARGETTS FRED T to DANKS ANNIE
KATANNING reg 33 yr 1914
Death of the man
MARGETTS FREDERICK T
FREMANTLE Reg 234 yr1934
A remarriage in which the name is again ANNI
S MARGETTS
Margetts
AnnisTo Curtis John
Fremantle reg 109 Yr 1941
It is an unusual name......
Sue