I believe this to be our William KELLY...
Qld Birth cert no. 1869/C2352 states that the birth of William KELLY was recorded in Queensland, in 1869. His father's name was recorded as Edward KELLY and his mother's name was recorded as Margaret KELLY (nee Pacey).

William was aged 69 when he died on the 13th July 1938. He was born at Gracemere Station where his father, Mr Edward (Howard?) Kelly, being overseer of Gracemere station. His father, Howard, died in 1870.
The Kelly family, along with the Archers, had arrived in the Gracemere Station area in 1856. 

I believe this to be our William...
Qld Death Cert no. 1938/C3466 states that the death of William KELLY was registered in Queensland, in 1938. His father's name was recorded as Edward KELLY and his mother's name was recorded as Margaret KELLY (nee Pacey).

Morning Bulletin (Rockhampton, Qld) - Thursday 14 July 1938 - News article 
"Death of Mr W. J. Kelly - Owner of Banksia Station.
The death occurred in a private hospital in Rockhampton yesterday morning of Mr William Joseph Kelly, owner of Banksia Station, near Torilla, at the age of 69.
Deceased was a member of a pioneering family which arrived at Gracemere with the Archers in 1830. He was born at Gracemere in 1809, his father, Mr Edward (Howard?) Kelly, being overseer of Gracemere station. The father died in 1870. After a residence at Gracemere for many years, Mr Kelly, about 35 years ago, acquired Banksia station.
Deceased is survived by a widow, four daughters (Mrs A. Halberstater, Doreen, St Lawrence, and Misses Constance Mary, Ellen Margaret, and Mary Gertrude) and two sons (Messrs Mark Thomas and Frank Edward).
The funeral will leave St Joseph's Cathedral at 11 o'clock this morning for the Rockhampton cemetery."

The Central Queensland Herald (Rockhampton, Qld) - Thursday 21 July 1938
"OBITUARY
MR W. J. KELLY. ROCKHAMPTON July 14.
The death occurred in a private hospital in Rockhampton yesterday morning of Mr William Joseph Kelly, owner of Banksia Station, near Torilla, at the age of 69. Deceased was a member of a pioneering family which arrived at Gracemere with the Archers in 1856. He was born at Gracemere in 1869, his father, Mr Edward Kelly, being overseer of Gracemere station. The father died in 1879. After a residence at Gracemere for many years, Mr Kelly, about 35 years ago, acquired Banksia station. Deceased is survived by a widow, four daughters (Mrs A. Halberstater, 'Doreen', St Lawrence, and Misses Constance Mary, Ellen Margaret, and Mary Gertrude) and two sons (Messrs Mark Thomas and Frank Edward)."

Qld Birth Cert No. 1870/C2546 states that the birth of Mary Josephine CROSS was recorded in Queensland, in 1870. Her father's name was recorded as Edward CROSS and her mother's name was recorded as Catharina CROSS (nee Siebel).

Qld Death Cert No. 1950/C5007 states that the death of Mary Josephine KELLY (nee Cross) in Queensland, in 1950. Her father's name was recorded as Edward CROSS and her mother's name was recorded as Catherine CROSS (nee Sibel)

Morning Bulletin (Rockhampton, Qld) - Saturday 23 September 1950 - Funerals
"THE Relatives and Friends of the late MRS MARY JOSEPHINE KELLY, of Malchi, formerly of Banksia Station, Relict of the late William Joseph Kelly, are respectfully invited to attend her Funeral, to move from, St Peter's Catholic Church, Ward Street, THIS (Saturday) AFTERNOON, at 4 o'clock, for the Rockhampton Cemetery. 
TUCKER & NANKIVELL,  Funeral Directors - Tels Nos  2478-2616."

Qld Birth Cert No.1903/C8009 states that, in 1903, the birth of Winifred Annie KELLY was registered in Queensland. Her father's name was William Joseph KELLY and her mother's name was Mary Josephine KELLY (nee Cross).

Qld Death Cert No. for...
Winifred Ann Halberstater
Event date: 20/07/1980
Event type: Death registration
Date of birth: 1903
Registration details: 1980/54243
Mother: Mary Josephine Cross
Father/parent: William Joseph Kelly

Grave Number LL-12-24 for Winifred Ann Halberstater at GRACEMERE CEMETERY BURIAL & COLUMBARIUM INTERMENT
Source...
http://www.rockhamptonregion.qld.gov.au/Your_Community/Cemeteries/Family_History - Gracemere Cemetery Burial Index

According to the Gracemere Cemetery Records...
Winfred Ann Halberstater (nee Kelly), aged 77, was buried in the Lawn section of the Gracemere Cemetery on 21st July 1980, having died on the previous day.