Welcome to Rootschat!
Since 2006 when this thread started, more information has come online, including the 1911 census. I'll take a look this morning to see what else can be found.
Nellie is usually short for Eleanor, but she may have been registered as Nellie, as there's a Nellie Mary birth in Bedford in the Mar quarter 1906
In 1911
1911 census details removed
Odd that the head should have given his name as Alfred, and he also signed as Alfred, when on this thread he's always referred to as Albert
The census details given in reply #16 is definitely not your Louisa - she was still with her father in 1911, age 24 born Berkshire. Which is not to say that the father Charles born 1865 Merident? Switzerland isn't somehow connected to your Louisa
David