"Lady Shaftesbury asked Ada's mum and dad if she could send her to a grammar school [private school] and was told 'no'.
"This was for two reasons. Her father thought she wouldn't fit in and he did not want to be indebted to the earl."
Ada left school aged 14 because that was her only choice.
"The choice was either grammar, which was private schooling and a different class, or finding a job."
According to a biography written by great-granddaughter Imogen Lovell, and which was read as a eulogy at Ada's funeral, Ada started work at Crichel House after finishing at school.
"She and her friend saw an advertisement for a job and got on their bikes and rode to Crichel House.
Ada got a job as a cook and her friend got a job as the fourth housemaid.
"They made the most amazing things in the kitchen, like sugar web," Trudy said.
"Granny hated working there because she was always washing dishes and everything was made of copper."
Then World War II was declared and she joined up with her friend, Trudy says.