Mary Ann (Milbourne) Partridge - Query on timeframe

Mary MILLBOURNE married John TAYLOR in ENGLAND in 1803 and arrived in Australia on "Friend" in 1811.

Her daughter Sarah TAYLOR was born in Australia on 14 June 1807, 4 years before her mother arrived.

Then Mary married Thomas PARTRIDGE on 9/5/1812 and then George HAMBRIDGE in 1818.

http://australianroyalty.net.au/individual.php?pid=I23429&ged=p... has Mary TAYLOR arriving on Friend on 16/10/1811 - marrying Thomas PARTRIDGE 9/5/1812 and daughter Sarah HAMBRIDGE was born c1811 (was 16 in 1825 Muster are born in colony) The age would put her as born 1809 therefore she was either 1809 born England or born 1811/12 born in Colony and age 13/14.

Anyone have any sources for Mary or Sarah?