Hi Marina. Apologies for the (very) late response but I've only just stumbled upon your post now after all these years. My maiden name is Bera. My aunt's (my dad's older sister) name was Mary who died mid twentieth century. Her children's names were Ronnie, Muriel, and Peter. Ronnie died approx 2008, and Muriel died approx 2012. Ronnie and his wife bore two children (son and daughter), and Muriel had three daughters.
I do have their children's details if you are interested.
My dad (PA Bera) was the youngest of his siblings, the oldest being Jack (John) Bera. I think Mary was the oldest female sibling. My dad died in 2003, and Jack died approx 1977. We are South Africans, and there are quite a few of us still living in Cape Town... while the rest of us are scattered further afield.
All the best for the future, and in your search.
God bless and Kind Regards