Think I might have cracked this--please pull apart if wrong.
John McKenzie was born c1884/5 as was aged 36y 6mths in 1921 born Govan.
Birth--see image
Mother Helen Forrester McClure born 2.4.1865
1871 census-- Helen Algie, aged 6 -322 Parliamentary Road Glasgow
1878 marriage
MCCLURE MARGARET & ALGIE JOHN 1878 644 / 9 / 36 Kelvin
1881 census --Helen aged 16, Book Folder 17 High St, Parish Glasgow St Paul
Marriage
MCKENZIE DONALD & MCCLURE HELEN FORESTER 1882 644 / 10 / 294 Anderston
Marriage
DONNELLY ANTHONY & MCCLURE HELEN 1890 644 / 10 / 444 Anderston
DONNELLY ANTHONY & MCKENZIE HELEN 1890 644 / 10 / 444 Anderston
DONNELLY ANTHONY & ALGIE HELEN 1890 644 / 10 / 444 Anderston
1891 census -- Helen Donnel,--aged 26-114 Douglas St
Anthony O Donnell 36 Head
Helen Donnell 26 Wife
John A M Donnell 6 Son (possibly John Algie McKenzie Donnell/O'Donnell)
Margaret Aljie 50 Mother-in-law
1901
Anthony Donnelly 45 Head
Ellen Donnelly 36 Wife
John McKenzie 16 Stepson (Step Son) occupation RIVET BOY
Maggie Donnelly 4 Daur (Daughter)
Margaret Algie 55 Mother-in-law
Rachel McCallum 29 Boarder
John McCallum 10 Boarder
Probably Helen in 1937
Name Helen M'k Algie ( Helen McKenzie Algie)?
Residence Year 1935
Address Langside Road, Cathcart
Residence Place Glasgow, Lanarkshire, Scotland
Parliamentary Division Glasgow
SS
added--deaths
MCKENZIE JOHN ALGIE aged 66 Male 1951 644 / 14 / 739 Partick
DONNELLY HELEN FORRESTER aged 89 Female 1955 644 / 10 / 72 Milton
ALGIE MARGARET aged 56 SWEENEY Female 1903 646 / 3 / 123 Partick