Is it appropriate for guests names to be informal on the inner envelopes?
You may address children, close friends and relatives informally on your inner envelopes. For relatives, addressing them as “Uncle Fred,” “Grandma Smith” or “Grandpa” are all acceptable. However, you need to consider who is issuing the invitations. For example, if the bride’s parents are inviting the guests, they would not refer to the uncle of the bride as “Uncle Fred.
