Well I'm looking at the various names you've given us to see if I can match any marriages of Doolan with the surnames of spouses, as far as the female ancestors are concerned. Initially I have found the marriage of Bertha E Doolan in the December quarter of 1919 in Islington to John R Gilbert.
From there I found Bertha on the 1901 census with her family as follows:
Father: William Ernest Doolan b: 1871c Wymondham, Norfolk
Mother: Bertha Ann Doolan b: 1872 Old Buckenham, Norfolk
Sister: Emile Doolan b: 1892c Old Buckenham, Norfolk
Brothers: Ernest Doolan b: 1894c Attleborough, Norfolk
Jack Doolan b: 1899 Old Buckenham, Norfolk
Christopher Doolan b; 1900 Burgh St Peter, Norfolk
The family were residing in Burgh St Peter and William's occupation was a GER Signalman.
Now, from there I checked other records and came up with a few birth records which I feel do fit:
Ernest Arthur Doolan b: December quarter of 1893 Wayland, Norfolk
Bertha Ellen Doolan b: 9.10.1895 / christened: 23.8.1896 Old Buckenham
Emily Almira Doolan b: 25.10.1891 / christened: 3.6.1895 Old Buckenham.
Then I managed to find a birth recor for Victor Arthur Doolan in the March quarter of 1910 in Loddon, Nofolk - he should naturally show on the 1911 census.