Looking for records of Francis Henry Dwyer & John Dwyer

Info known so far:
Francis Henry Dwyer, son of John Dwyer
B: abt 1854, Bathurst NSW, Australia

Married to Sarah Ceclia Nunn
M: 1874, Woolahra, NSW, Australia (NSW BDM 1394/1874)

Francis Henry Dwyer
D: Newtown, NSW, Australia (NSW BDM 15702/1931)

(Father's name & place of birth are on Francis' Death certificate.)

Children of marriage Sarah & Francis:
Henry Dwyer 1874-1935
Frank Dwyer 1877-1879
Robert William Dwyer 1879-1971
David Arthur Dwyer 1881-1955
Francis Henry Jnr Dwyer 1883-1957
Sydney Percival Dwyer 1887-1968
Albert Dwyer 1890-1890
Mary Jane Dwyer 1892-1969

Any information on the family would be grately appriciated..
We have nothing on the birth of Francis Henry Dwyer & John Dwyer his Father..

Alyssa