Let me correct it as Pension and not family pension. Yes, in the event of the unfortunate death of the holder of the scheme certificate, his family will be entitled to receive a family pension.
You can (you have to) surrender the scheme certificate once you get a job with PF coverage. It is surrendered through the employer, and by doing so, your past service disclosed in the scheme certificate will be added to the present, and the pension at the age of 58 will be decided accordingly.
Regards,
Madhu.T.K