Some places to find samples of bereavement letters and sayings are ObituariesHelp.org and Quick Condolence. Both of these websites offer tips and suggestions for writing a bereavement note.
ObituariesHelp.org offers a number of different letters, salutations, words and phrases to be used in a bereavement letter. It lets people choose from the different sayings and quotes to write a custom letter but also see appropriate phrasing methods. Dear and Dearest are common salutations for a bereavement letter. The opening phrases are also helpful when writing a letter.
Quick Condolence is a website with information about writing different types of condolences, including sympathy and bereavement messages. People can choose a sample message, quote or saying to be used in their own letter.