2 Answers

No way jose`

Absolutely not.  In the USA, there are the following ways of filing:
Married, filing jointly  (MFJ)  that's not you
Married, filing separately (MFS)  that's not you
Single that's you
Head of Household (HH)  that could be you, but could be your son. 
Qualifying Widow(er)  not without a minor child and widowed w/n past 2 years

You and your son and grandson do not qualify to file together.  Unemployment is taxable, with very few exceptions.  Your age qualifies you for a better standard deduction if you file Single, depending on your total income.  Your son would be better off filing as HH because he can claim EIC for his son (I'm presuming your grandson is under 18).  You do not qualify for EIC at 66.  
You should go to a tax preparer with all your "stuff". They can get the best return for you.