Send a message to the person who requested a photo of the grave monument of Mary Ann Grey with the following comment:
Edward John GREY arrived in South Australia with his parents William and Elizabeth, brother Henry and sister Mary Jane (my GG Grandmother) aboard the 'Hooghly' in 1839. He married Mary Ann HAYNES in Adelaide in 1845. Then it gets wierd. In Melbourne General Cemetery there is a headstone (available on Billiongraves) with four names, Henry James GREY, George Jenkins GREY, who died in Hindmarsh!, Edward John GREY whose funeral notice in 1891 mentioned he was a colonist of 52 years and in Melbourne for more than 30 years, and the fourth name was EJ's wife, Jane Mary who died in 1880 aged 67. The GREY death ages tally closely with their English birth records from Familysearch. I'm confused, so I am hoping the gravestone photos may help a little.