Melissa, I just started my LADEN search this morning and read your queries. They are several months old, so none of the following may be as new to you as it is to me.
On the < http://www.ancestry.com > Laden message board is a posting about Luther LADEN: Message #20 Friday, December 15, 2000Subject: Ladens, Posted by: Debbie and Jamie Laden. Message: "My name is Debbie Laden I have a sister and brother their names are jamie and Jimmy we live in michigan,all of our family on the Laden side live in Arkansas, My grandparents were Pearl and Luther Laden. If anyone has any other info on the ladens please email me, or if anyone would like to email me or my siblings feel free to email."
If you have hit a "big brick wall," you must have done a lot of research. Are you looking for living relatives (so that you can meet them) or are you searching for LADEN genealogy? If you mean genealogy, I would be grateful to know where you have already looked. For example, which Dunklin Co. MO censuses (where Kennett is) have you searched?