Dear Prudie: My niece didn't invite my sister's wife nor my husband (I'm gay) to her wedding

Emily Yoffe / Photo by Teresa Castracane.

Hmmm. Homosexuality runs through some families like a backwoods creek, but in this one it's more like the confluence of the Missouri and the Mississippi rivers.
     Without spoiling all the details, suffice it to say that Prudie thinks the writer should go directly to the source, ask some specific questions, and then explain a few things about wedding etiquette in respect of couples and invitations.