Tkx again for all the info..
It looks looks Rita Quinlivan took over as principal from Patrick McDonnell on his retirement. Mrs Marmion probably started teaching there in 1927 and then on the death of Rita in 1937 to over as principal.
It looks like we now need to find who was there before P. Mc Donnell .
I'm not looking for any teacher in particular at the moment..
It would be great if we could work our way back all the way to 1846..
I have to say a great response to my query.
Tkx