Please write your name legibly, sign the form and enter your employee number. We are able to provide a Donation Receipt Form for tax purposes.All donations must be approved before they are received. Donate online now or download a Donation Form (PDF) to fill out, print and mail in along with your check. Duties of Conservator and Acknowledgment of Receipt of Handbook for Conservators. GC-350, Letters of Conservatorship. Your donation receipt can be a mailed thankyou letter or an emailed acknowledgment. Select a process that works best for your nonprofit. Without our amazing donors, our mission would not be complete. 1 shall be included in the West Contra Costa.