Hi Just saw you web site. Just to point out a few mistakes.
William Jones, Snr. Born Wales 1819 was married to Margaret Tennant, who died, his second wife was Martha French Leeder, Martha came out to Western Australia as a small child with her mother Hannah Leeder and other siblings, on the same ship as he – William Jones - and his first wife. I have photos of Martha.

His father was Walter Jones, who arrived in Western Australia, Guildford, in 1829. Walter’s Wife was Tabitha Chaplain, also born in Wales. Tabitha arrived in the colony in 1830.

His son Oliver was not married to Margaret Tennant, she was his fathers first wife. Both William’s wives are buried at the old cemetery in Guildford next to the Guildford Grammar School.

Oliver Jones was not called William Oliver Jones, but simply Oliver Jones. I have a copy of his birth certificate in front of me. Also a copy of his death certificate. Did 11th February 1933 (not 1932), of senility and debility, aged 85 years. He died in Guildford, buried by Arthur J Purslowe.

Children Alfred then 62, Amelia then 59, William then 56, Augusta then 53, Thomas then 51., 1 female was listed as deceased, that would have been Alice. He often called himself Oliver Llewellyn Jones, Llewellyn being something of a family name. He was a policeman at Greenough. His second child who you have marked not confirmed, was my grandfather, Alfred Edmund Jones , born 24 July 1870, christened 18 September 1870, married 13 JUNE 1892, Married Bridget Canavan, had five children, the youngest Bertie Edmund, born April 1901, birth not registered, was my father. One died young. Alfred Died 5 August 1959 I am sure Alfred’s birth and death certificates (copies) are here somewhere

You have Oliver’s wife as Margaret Tenant nee Margaret Marry Anne Bogue. his father’s first wife was Mary Tenant, Oliver’s wife, Magaret Anne Bogue, born 26 January 1847 in Launceston, Tasmania, moved to WA when she was a baby. She died 11 December 1933 I have seen it shown as having a previous husband George Tennant. Whether there is some connection between her first husband and the first, deceased wife of her husband’s father I do not know. Probably there is. Guildford was a small place.