Yes, Twinkleberry again!!!!
I have just looked up information on some of the areas where your Taylor family may have lived, and have found some information from the
book "Place Names of South Australia" by Geoffrey Manning. The following is what I found:-
SALT CREEK. - North of Tumby Bay, North of Cowell Bay, nowhere near Mount Pleasant. Information found on page 277 of Manning's Book.
PEWSEY VALE On the bounday of the Barossa Valley. page 247
TIERS Forests of the Mount Lofty Ranges, page 310
TALUNGA County of Adelaide. The name is an aboriginal word for "Creek
TRURO 48km north east of Gawler. page 314.
Hoping this may be of some interest.
Having spent many a visit to Mount Pleasant since a young teenage girl, I would strongly suggest your information should be the area of "Talunga"
Regards
Twinkleberry