The following are excerpts from the link I sent you from linda1 (I think you used it in the PR?? Not sure). However, should you run into interference re: #'s of shareholder letters, I do not think it is necessary, though more letters are desirable. Follow my train of thought below in bold (I hope my train...isn't way off! LOL)
Claims
The Bankruptcy Code defines a claim as: (1) a right to payment; (2) or a right to an equitable remedy for a failure of performance if the breach gives rise to a right to payment. 11 U.S.C. § 101(5). Generally, any creditor whose claim is not scheduled (i.e., listed by the debtor on the debtor's schedules) or is scheduled as disputed, contingent, or unliquidated must file a proof of claim (and attach evidence documenting the claim) in order to be treated as a creditor for purposes of voting on the plan and distribution under it. Fed. R. Bankr. P. 3003(c)(2). But filing a proof of claim is not necessary if the creditor's claim is scheduled (but is not listed as disputed, contingent, or unliquidated by the debtor) because the debtor's schedules are deemed to constitute evidence of the validity and amount of those claims. 11 U.S.C. § 1111. If a scheduled creditor chooses to file a claim, a properly filed proof of claim supersedes any scheduling of that claim. Fed. R. Bankr. P. 3003(c)(4). It is the responsibility of the creditor to determine whether the claim is accurately listed on the debtor's schedules. The debtor must provide notification to those creditors whose names are added and whose claims are listed as a result of an amendment to the schedules. The notification also should advise such creditors of their right to file proofs of claim and that their failure to do so may prevent them from voting upon the debtor's plan of reorganization or participating in any distribution under that plan. When a debtor amends the schedule of liabilities to add a creditor or change the status of any claims to disputed, contingent, or unliquidated, the debtor must provide notice of the amendment to any entity affected. Fed. R. Bankr. P. 1009(a).
(IN CASE PR AND LETTERS DO NOT WORK I THINK BELOW MAY BE OUR LAST REMEDY)>
Equity Security Holders
An equity security holder is a holder of an equity security of the debtor. Examples of an equity security are a share in a corporation, an interest of a limited partner in a limited partnership, or a right to purchase, sell, or subscribe to a share, security, or interest of a share in a corporation or an interest in a limited partnership. 11 U.S.C. § 101(16), (17). An equity security holder may vote on the plan of reorganization and may file a proof of interest, rather than a proof of claim. A proof of interest is deemed filed for any interest that appears in the debtor's schedules, unless it is scheduled as disputed, contingent, or unliquidated. 11 U.S.C. § 1111. An equity security holder whose interest is not scheduled or scheduled as disputed, contingent, or unliquidated must file a proof of interest in order to be treated as a creditor for purposes of voting on the plan and distribution under it. Fed. R. Bankr. P. 3003(c)(2). A properly filed proof of interest supersedes any scheduling of that interest. Fed. R. Bankr. P. 3003(c)(4). Generally, most of the provisions that apply to proofs of claim, as discussed above, are also applicable to proofs of interest.
I hope this helps. Some, maybe all, of this is way off. I'm just trying to help. Good night. Big TY!