Have you checked every record you can for your ancestor? Here are some records you may want to look into.
Joan Kusek has taught genealogy for over 10 years. Her "How to Dig Up Family Roots" series was very popular at Johnson County Community College where she taught for 12 years. This legacy will continue as she will again be teaching at JCCC in the Spring of 2010.
She has also lectured throughout Kansas and Missouri with her famous talks on "Where There's No Will There's a Way" plus many other topics.