Could this be your couple:

Marriage:
Name: Walter Butterworth
Spouse Name: May Summers
Marriage Date: 12 Sep 1914
Marriage Place: Queensland
Registration Place: Queensland
Registration Year: 1914
Registration Number: B015541
Page Number: 3566

A copy of the marriage will give you parents details, available from BMD QLD

https://www.bdm.qld.gov.au


also the death certificates will have parents names, although sometimes the informant's information is not always accurate.

Death for Walter
1942 B56164 Walter Butterworth Frederick William Miranda Melton


Death for May
1940 B50058 May Josephine Butterworth Charles James Summers -

no mothers name listed.

Check the details with the marriage certificate.

Using information on death, this could possibly be Walters Birth

BMD QLD
1890 B45816 Walter Butterworth Frederick William Miranda Melton


BMD QLD is online and is free to search.

Hi and a big thank you asheppard and familydetective for your help - it is priceless. I'm fairly new at this so put it on the self some years ago after hitting a blank.

If you purchase the certificates or transcripts, Walters birth may have details of his parents marriage.

On the electoral roll

1903 & 1905
Butterworth, Fredrick William, Commission Agent
Butterworth, Moranda, home duties (Miranda)

Address: Ardovie, Yundah Street.

1913
Butterworth, Frederick William, Merchant
Butterworth, Walter, Clerk

Address: New Sandgate Rd, Clayfield

1922 (last one I can find him on)
Name: Frederick William Butterworth
Electoral Year: 1922
Subdistrict: Toombul
State: Queensland
District: Lilley
Country: Australia
Residence Address: Claymore, New Sandgate rd., C (Clayfield)
Occupation: Field, O'.,T (reads Agent)

This could be Miranda's death
Name: Miranda Butterworth
Death Date: 05 Oct 1909
Death Place: Queensland
Father's name: William Metton
Mother's name: Lessie Hervey
Registration Year: 1909
Registration Place: Queensland
Registration Number: B011592
Page Number: 3564

parents possible William Melton & Jessie Harvey from Bury St Edmunds Suffolk

Found this immigration

NSW assisted immigration
Name: William Melton
Birth Year: abt 1822
Age: 31
Gender: Male
Arrival Date: 26 Feb 1853
Vessel Name: Agricola

Details:
William, 31, Blacksmith
Jessie, 26, wife
Charles 7, son
Lavinia 6, daug
Miranda 3, daug
George 1, son

all from Suffolk

This is possible family in 1851 England Census, in Queensland with birth of Daughter Kate 1856 and have five more children

1851 England Census
Name: Miranda Melton
Age: 2
Estimated birth year: abt 1849
Relation: Daughter (Child)
Father's name: William Melton
Mother's name: Jessey Melton
Gender: Female
Where born: Bury, Suffolk, England
Civil Parish: Bury St Edmunds St James
County/Island: Suffolk
Country: England
Household Members:
Name Age
William Melton 28, head, Blacksmith,b Pakenham Suffolk
Jessey Melton 24, wife, b Ampton, Suffolk
Charles Melton 6, son,
Lavinia Melton 5, daug,
Miranda Melton 2, daug,

children all born Bury St Edmunds Suffolk

Births Dec 1848
Melton Miranda Bury St Edmds 13 386

parents marriage

Marriages Dec 1844
HARVEY Jesse Bury St Ed 13 1055
MELTON William Bury St Ed 13 1055

That's fantastic thank you. I will purchase some records I think, for greater certainty. With misspellings on records it is no wonder the search is fraught. I have spent a few hours downloading lists from BDM records and started a timeline to see who fits the gaps. Might be time to reactivate my old ancestry.com.au account!