Choose formal or informal wording. If you want a serious affair, then stick to formal wording. Write, "The honor of your presence is requested at a memorial service for Bob Smith on September 8." However, if the gathering is informal, write, "Join the family on September 8 to remember ...
UPDATE: May 26th's issue of the Daily Item contains five letters to the editor, all offering strong objections to the publication of yesterday's misguided letter. You can see themhere.FURTHER UPDATE: The hateful letter has been taken down - you can note its absenc...