FYI - I have gone thru the mods first and I was ok'd to post this.
My uncle married a woman who had four children from a previous marriage. He NEVER adopted them, but did have two children with this woman.
I now have 19 cousins just on one side of the family - single, married, separated, divorced or widowed. This does not include the four children (who are now adults). This doesn't include any SO's.
I have no plans on inviting my cousins, but my mom thinks I should invite them , including the ones who were never adopted. Now I know that the one who pays has a say, and at this point neither of my parents are contributing. Funds would not allow a huge wedding anyway.
At this point I want it to be the officiant (and SO), my parents, my brother (single, no SO), my sister (divorced, no SO) and her two adult children (neither has a SO). FI wants his mom and step dad (has been estranged from his biological father since 1979), brother and SO, his one aunt and two cousins (with SO's). I am ok with this.
I'd like opinions on this as children that are not adopted are not addressed in the Who Do I Need To Invite thread, otherwise I think eloping may be the only answer.