I have been trying for 4 years to crack this one and cant

Infact no one seems to be able and i have threads up all over the place so if you google you would no doubt come across them. [Lots of other threads from other people as well looking for the same thing i am]
I have nothing on George before his 1856 marriage in Drayton Swamp. I have everything i need for 1856 onwards just cant find him before then. Cant find his parents, siblings or his baptism. Its like he just magically appeared the day of his wedding

Marriage details
Marriage Certificate for George Gibson
30 August 1856 School master house Drayton Swamp
George Gibson bachelor ...
birth place Ebington Middlesex
aged 26 Occupation Builder
Usual place of residence Drayton Swamp
Parents William Gibson and Susannah Hutchinson .. father's occupation Jeweller
Eliza Downs spinster
birth place Glendalough Wicklow Ireland
aged 18
Usual place of residence Drayton Swamp
Parents William Downs and Mary Edwards .. father's occupation labourer
Witnesses William Downs and Ann Ward
Death certificate details
Death certificate for George Gibson
Died and Where ... 26 December 1892 Bungeworgorai Creek near Roma
George Gibson farmer
Aged 62 years 9 months 22 days
Cause of death ... cancer of the tongue, cancer of the throat, pycemia exaustion. one year
Medical attendent Guy S L'Estrange last saw deceased December 24 1892
Father William Gibson occupation Jeweller
Mother Jane
Informant Elizabeth Gibson, wife. Bungeworgorai Creek near Roma
Registrar Frederick Vaughan January 6th 1893 Roma
When and where buried .. 27th December 1892 Cemetery Roma
Whom certified W J Lawson
Minister and 2 witnesses F N Pickford Church of england .. witnesses William Perrett, J Phillips
Where born and how long in Australian states .. Essex England 52 years Queensland
Where, who to and age at marriage .. Toowoomba Qld, 26 years, Eliza Downs
Children .. William H 35 years, George 30 years, Susanna 27 years, Richard 24 years, Benjamin 21 years, Mary Eliza 18 years, Phillip James 15 years, Ellen Jane 10 years.
Deceased 2 males