Found a bit more:

The Argus (Melbourne, Vic. : 1848 - 1956)
Wednesday 9 February 1921

McKAY. —In loving memory of my dear husband and our dear father, Daniel McKay, who passed away at his residence, "Farleigh," Wakefield street, Glenferrie, 9th February, 1920.

—(Inserted by his wife, sons, and daughters.)

McKAY. —In loving memory of our dear father and grandfather, who departed this life on 9th February, 1920, at 37 Wakefield street, Glenferrie.
Till we meet again.
-(Inserted by his loving son and daughter-in- law, D. and N. McKay, and grand-daughter Ena.)



The Argus (Melbourne, Vic. : 1848 - 1956)
Friday 27 February 1925

McKAY - On the 13th February, at Greymouth,N.Z., Peter Finlay, loved brother of the late Daniel McKay, and loving uncle of all at Farleigh, Wakefield street, Glenferrie (Native of Ballarat)

NZ Archives:

Wellington probate files [first sequence]
AAOM 6029/535 36657
MCKAY Peter Finlay ORDER DETAILS » 1925 1925


Name: Peter Finlay McKay
Father's Name: Donald McKay
Mother's Name: Georgina Munro
Birth Place: Ballarat West, Victoria
Registration Year: 1866
Registration Place: Victoria
Registration number: 6385

Name: Peter Finlay McKay
Spouse Name: Margaret Foster
Marriage Date: 7 Sep 1893
Marriage Place: Tasmania
Registration Place: Strahan, Tasmania
Registration Year: 1893
Registration number: 777

Name: Frederick George F McKay
Mother: Margaret Foster
Father: Peter Findlay McKay
Birth: 1894 - Zeehan, Tasmania

WW1:

Name: Frederick George Findlay McKay
Regimental Number: 6/3388
Last Residence: Westport
Relative Name: Mrs P F McKay
Relative Relationship: Mother
Embarkation: 1914-1915
address: Millerton, Westport. He was a Corporal


Marriage in NZ:
1921/8556 Ethel May Newlands to Frederick George Findlay McKay

births in NZ:

1899/17807McKay Hazel Doris P: Margaret Annie Peter Finlay

deaths in NZ
1925/2128 McKay Peter Finlay 57Y

1976 McKay Frederick George Findlay b 12 September 1894

Greymouth probate files
CAIF 3387 CH845/19 GM178/1992
WARREN Peter Finlay McKay - Taylorville - Farmer ORDER DETAILS »
1992 1992

1992/50776 Warren Peter Finlay McKay born 26 January 1922
not sure who the one above belongs to but working on it!

Electoral Rolls NZ:

Name: Peter Finley McKay
Electoral Year: 1919
District: Buller
Region or Province: West Coast
with Margaret McKay, at Millerton NZ. He is an engineer

Name: Frederick George Fraldy McKay
Electoral Year: 1919
District: Dunedin Central
Region or Province: Otago
at 2 Phillips St, Caversham, a Bank Clerk, with John, a boilermaker, Janet, spinster, John Henry, a clerk, Annie Elizabeth, married woman ( all MCKAY)

Name: Frederick George Findlay McKay
Electoral Year: 1928
District: Westland
Region or Province: West Coast
with Ethel May. He is a bank Officer.Living Marsden Rd

Margaret ( married) & Hazel McKay ( Spinster ) are at 58 Tainui Street ( no sign of Peter Finlay M)


Name: Frederick George Findlay McKay
Electoral Year: 1935
District: Christchurch East
Region or Province: Canterbury
at 50 Tennyson St with Ethel May. He is a clerk


Name: Frederick George Findlay McKay
Electoral Year: 1946
District: Sydenham
Region or Province: Canterbury
at 25 Wembley St, a clerk, with Ethel May, and I guess daughters, Esme Newlands, spinster, and June Margaret spinster

Name: Frederick George Findlay McKay
Electoral Year: 1949
District: Christchurch Central
Region or Province: Canterbury
at 222 Bealey St, with Ethel May and June Margaret (spinster)- Esme must have married

I've skipped a few:

Name: Frederick George Findlay McKay
Electoral Year: 1972
District: Christchurch Central
Region or Province: Canterbury
Retired, with Ethel at 224 Bealey St.
Daughter June hasn't married but is a clerk at 18 Packe St

1973/39276 McKay Ethel May 11 June 1901
1976/42888 McKay Frederick George Findlay
born 12 September 1894

death:

2008/2398 McKay June Margaret 27 September 1922

Margaret Ann McKAY is now a widow by 1946 and living at 35 Longfellow St with Hazel Doris, a spinster.

in 1949:

Name: Hazel Doris Mckay
Electoral Year: 1949
District: Sydenham
Region or Province: Canterbury
on her own at 35 Longfellow St, spinster

The mother, Marget Ann ,nee FOSTER died 1948:

1948/27516 McKay Margaret Ann 75Y

AAOM 6031/59 1825/48
MCKAY Margaret Ann ORDER DETAILS » 1948 1948

Here is Fred's daughter, Esme Newlands McKAY - she is married:

Name: Esme Newlands Buttolph
Residence: 1949 - Christchurch Central, Canterbury
married to Errol Robert BUTTOLPH and living at 224 Bealey St- ie with Mum & Dad McKAY

skipping a lot:

Name: Esme Newlands Buttolph
Electoral Year: 1981
District: Papanui
Region or Province: Canterbury
at 81 Islesworth St. Errol is an Executive and a son, Paul Anthony is an Auto parts worker...same as 1978

Surname: McKay
First name(s): Margaret Ann
Date of death: Sunday, 6 June 1948
Cemetery: Ruru Lawn
Date of burial: Tuesday, 8 June 1948
Block number: 33
Plot number: 45
Age: 75 years
Address: 35 Longfellow St, Chch
Occupation: Widow
Place of birth: Cobden
Years in New Zealand: Life

Esme Newlands BUTTOLPH died 1991.
1991/41290 Buttolph Esme Newlands 11 April 1924
Errol died 1993-
1993/29808 Buttolph Errol Robert 8 September 1923

apparently he had a quick marriage to Nyra Hilda HARDY...he didn't waste any time! She had been married to Douglas HARDY
2011/31639 Buttolph Nyra Hilda 12 June 1922


I noticed Frederick George finlay McKAY was with another family in the Electoral Rolls:


ull Name: John Henry McKay
Forename(s): John Henry
Surname: McKay
War: World War I, 1914-1918
Serial No.: 10/3013
First Known Rank: Corporal
Next of Kin: Mrs A.E. McKay (mother), 2 Phillip Street, Kensington, Dunedin, New Zealand
Marital Status: Single
Enlistment Address: Hotel Bristol, Wellington, New Zealand
Military District: Wellington
Body on Embarkation:

Samoan Advance Party
7th Reinforcements

Embarkation Unit: Wellington Infantry Battalion
Embarkation Date:

15 August 1914
9 October 1915

Vessel: Moeraki or Monowai

Name: Annie Elizabeth McKay
Electoral Year: 1900
District: Dunedin
Region or Province: Otago
at Maori Hill, with John , a boilermaker

Name: Annie Elizabeth McKay
Electoral Year: 1928
District: Dunedin Central
Region or Province: Otago
at 2 Phillips St, Caversham, with John , retired

haven't figured out this relationship:-((


The Argus (Melbourne, Vic. : 1848 - 1956)
Friday 20 April 1934

McKAY -on the 19th April at Farleigh 37 Wakefield street Glenferrie, Georgina widow of the late Daniel McKay and loved mother of Bob Dan Roy Ethel and Gladys aged 76 years

Cheers
Jocelyn