I know the line, but probably can't add much to what you already have. I'd be curious where you found what information you posted though - if you don't mind sharing your sources.
Missouri had one child prior to relationship with Wingard. The child was named John Vought (see See Somerset County deed book 59 pages 562, 563 for more information on this child). But I don't know anything about the child that she had with Wingard and I only have a reference to one child with him.
Is your interest in the Younkin line or Wingard line?