Apparently Walter Maa Louey ( Walter Mar) was the eldest of the nine children siblings and was born 1879. I believe he was born in Tasmania.
He lived in and worked in Tasmania and in 1901 went to Perth where he met Sarah Golden and married in 1903. He returned to and worked in Tasmania as a miner for some years.
His father Maa Louey was a miner and storekeeper and was naturalized in 1896 in Launceston where he lived for many years.
From 1875. "Maa" became "Mar" later. A Mandarin name.
Chinese " family" names are like our surnames but are placed first.
According to the dates of the births. Charles Maa Louey was born in 1881 in Tasmania and was married to Violret May Chintook.