I have two nieces and one nephew (biologically), all my brother's kids, but from different mothers. The oldest niece and the youngest, my nephew, live with my brother. The middle child lives with her mom's second husband, who I haven't really met. I would really like to invite my niece to my wedding, but I'm unsure of proper invite etiquette in this situation. Since she doesn't live with my brother or her mother (who will also be invited to the wedding), how should I extend her invitation? Do I send her her own invitation (she's under 14, so transportation would be an issue unless I also invited her step-dad - a stranger to me), do I include her name on her mother's invitation (even though the mother lives in another state) or do I include it on my brother's invitation, even though she doesn't live with him? I'm really unsure of what would be the right thing to do. It's still early yet, so I'm not in any rush, but I'd like to be prepared for when the time comes to collect addresses.