Hi Una & Kay,

You've probably got most of these but I wondered if it would help to see them listed together (gathered from Ancestry & Lawson's microsite):

Lawson Microsite births:
CLUGSTON, Jessie 4 Nov 1887 Rushen 159 Not given CLUGSTON, Jane
CLUGSTON, Lucy May 31 May 1891 Rushen 202 Not given CLUGSTON, Jane
CLUGSTONE, John Herbert 6 Jul 1896 Castletown 167 Not given CLUGSTONE, Jane

England & Wales, Marriage Index, 1916-2005
Name: John H Kinvig & Nellie Rhall
Spouse Surname: Rhall & Kinvig
Date of Registration:Apr-May-Jun 1916
Registration district:West Derby
Inferred County:Lancashire

England & Wales, Marriage Index, 1916-2005
Name: Henry Riozzio & Eleanor Kinvig
Spouse Surname: Kinvig & Riozzie
Date of Registration: Apr-May-Jun 1941
Registration district: Crosby
Inferred County: Merseyside
Volume Number: 8b
Page Number: 1594

England & Wales, Birth Index, 1916-2005
Name: Linda Riozzie
Mother's Maiden Surname: Kinvig
Date of Registration: Apr-May-Jun 1942
Registration district: Crosby
Inferred County: Lancashire
Volume Number: 8b
Page Number: 940

England & Wales, Birth Index, 1916-2005
Name: John A Riozzi
Mother's Maiden Surname: Kinvig
Date of Registration: Oct-Nov-Dec 1958
Registration district: Crosby
Inferred County: Lancashire
Volume Number: 10c
Page Number: 97

England & Wales, Birth Index, 1916-2005
Name: Elizabeth Riozzi
Mother's Maiden Surname: Kinvig [transcribed as Kiving]
Date of Registration: Oct-Nov-Dec 1950
Registration district: Crosby
Inferred County: Lancashire
Volume Number: 10c
Page Number: 69

Lawson Microsite marriages:
KINVIG, Herbert 9 Nov 1907 D dst 268a KELLY, Eleanor Margart