It was a peasant family in lower Australia--lower Australia?

出身于澳大利亚南部的一个农民家庭？

Grigori Yefimovich Rasputin began his life in Siberia, born in 1869 to a peasant family.

1869 年，格里戈里· 叶菲默里奇·拉斯普丁出生在西伯利亚的一个农家。

Born into a poor peasant family on the eve of WWII, Gagarin could've easily never amounted to much.

加加林出生在二战前夕的一个贫穷的农民家庭，他可能永远都不会有什么成就。