Your family members' scores should not be affected by your filing bankruptcy.
If one of your family members is a co-signer on one of your accounts, their credit score might be impacted by your failure to pay on that debt.
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Only if the family member was a co-debtor will they be affected. That means that you and the other family member have joint liability as co-signers. You would get a discharge of the debt, but not them.
Generally, no your family members should not be affected by your filing bankruptcy, unless they are a joint-debtor (co-signor) on one of your debts, than it may negatively affect their credit report.