Dorcas Smith Carley (Conger) - Smith?

Congers is her birth surname. Carley is her married name (last name at death). Those fields are filled in correctly. Smith could either be a middle name or meant to show a previous married name.

Hope this helps.

So, it's Congers- not Conger?

That information doesn't really help (except, unless, if it's Congers- which would be a different last name, and why I can't find documents linking her to the parents that are listed).

There's no source (documents; birth record, marriage record, etc.) which links her to David and Julie Conger.