Brian Lawson's list has some of the children but it doesn't have them past 1908
That list says Mona was b 1902 and Paul 1906
BRIDSON, Paul 1906 Douglas A 1858 BRIDSON, Paul CLARK, Sarah Eleanor

If there was a James he would have been after Worrel Henry 1908.
The list doesn't have your Percival

Hopefully, some of the others on the list will be able to connect with you. Eric Gelling has extensive info on that surname--Paul's mother was Elizabeth Margaret Gelling.

Donna