Further to my previous post, here is some Australian information from the NSW Birth, Marriages and Deaths;

Births:
Registration No Last Name Given Name(s) Father's Given Name(s) Mother's Given Name(s) District
18319/1941 KIRKHOUSE CHRISTOPHER BEDLINGTON HENRY MARGARET MAYFIELD
80214/1972 KIRKHOUSE MARTHA NICOLINI HENRIK CATO MATHILDE ELISE NEWCASTLE


Source: New South Wales Registry of Births, Deaths and Marriages.

Marriages:
Registration Number Groom's Surname Groom's Given Name(s) Bride's Last Name
at Time of Marriage Bride's Given Name(s) District
23724/1943 KIRKHOUSE HENRY ANGELL REGAN ROSEBILLEE CHAPMAN MOSMAN (Sydney, NSW)


Marriages:
Registration Number Groom's Surname Groom's Given Name(s) Bride's Last Name
at Time of Marriage Bride's Given Name(s) District
19159/1928 GREAVES WILLIAM C KIRKHOUSE MARGARET M WARATAH (Newcastle, NSW)
16336/1933 LEISHMAN JOHN C KIRKHOUSE BARBARA D MAYFIELD (Newcastle, NSW)
23216/1939 PRESCOTT RALPH KIRKHOUSE ELSIE MAYFIELD
23624/1943 REGAN ROSEBILLEE CHAPMAN KIRKHOUSE HENRY ANGELL MAYFIELD


Source: New South Wales Registry of Births, Deaths and Marriages

Checking the telephone white pages there are three Kirkhouse 's listed, two in Western Australia and one in Victoria.

Cheers,

Don.