Etiquette on Addressing People

Before dealing with addressing envelopes, let’s talk about addressing people. The name game can be confusing—who’s a Ms., how to hyphenate, Misses, Messrs., and so forth.
Remember that information about forms of address and titles is merely what has been the custom and what most people have accepted. These titles and forms of address, however, are no more correct than any you may decide upon for yourself. You can use this information as a starting point, but you will ultimately make up your own mind about what titles and forms of address are most appropriate for you and for those with whom you’re corresponding.