Hi there, I am researching the Buckinghams/Memory families from Buckfastleigh.
Samuel Buckington b 1817, son of William and Grace, married Ann Memory and emigrated to Australia, as you mention, arriving on board Omega in January 1854. Their children were Emma and Samuel Ezekiel.They also had another daughter Grace Annie b 1855 in Australia.
Samuel Ezekiel's daughter Grace Olive b 1880 in Australia married Joeseph Bramwell in Victoria 1899, but moved to Wellington, New Zealand sometime after the birth of their second child in 1902.
Grace Olive Bramwell b1909 married Lance Carruthers in 1930.
They had only one child, William John Carruthers b 1930. I am researching on behalf of William John Carruther's daughter and family, all based in New Zealand.
I have just started research, so would appreciate any information you have to offer. I understand the family has quite a collection of old photos which I will work on getting scanned, and this may be of some interest to you.
Please feel free to contact me on firstname.lastname@example.org