A debtor's new business address is of no use to the creditor. Once a debtor files bankruptcy, the creditor cannot contact him/her, as that contact would violate the Bankruptcy Code, and they could be sued by the debtor. Contact is limited to the debtor's BK attorney or court-appointed trustee. I think Daniel filed with the California Central Division, but Google will have all the data.
Creditors already face financial loss, stress and a feeling of abandonment and resentment in a system that is not designed to help them. The last thing they need is additional legal jeopardy. My sympathies to all involved.