Hello Lancefroggatt,
Spotted your enqury on the Merseyside thread although it's a couple of years old I thought I would do a bit of searching for you.

Found this in the Parish records
Birth
27 April 1924 St Bartholomew Vauxhall Liverpool
Born 8 April 1924
Ralph McColloch Child of James McColloch & Edith of 85 Roscommon Street
Fathers Occupation Newsagent
Baptised by R.D.Hutchinson Vicar.

Marriage Banns St Paul Kirkdale Liverpool
Henry Rimmer Bachelor of This Parish
Ellen Dowd spinster of This Parish
1st Reading 19 May 1935 2nd Reading 26 May 1935 3rd Reading 2 June 1935
Married June Quarter 1935

Marriage
Sept Quarter 1947 Liverpool North
Ralph McColloch & Doris R Irving
Ref Vol 10d Page 429

Birth
March Quarter 1950 Liverpool South
Mary C Dowd Mother Keefe
Ref Vol 10d Page 996

Birth
Dec Quarter 1957 Liverpool North
Barbara C Dowd Mother Dowd
Ref Vol 10d page 402

Birth
March Quarter 1965 Liverpool North
Janet Dowd Mother Dowd
Ref Vol 10d Page 250

Birth
March Quarter 1967 Liverpool North
Margaret Dowd Mother Hoare
Ref Vol 10d Page 221

Birth
March Quarter 1973 Liverpool
Charlene Dowd Mother Dowd
Ref Vol 10d Page 1881

Hope this helps in some way.
Regards.
Maureen.
Liverpool.U.K.