Angela R. Zahner's Ancestors

I am currently researching the DUNLAP surname. James Henry DUNLAP was born in Pennsylvania in 1818, married Martha Miller (date unknown), and died in 1896 in Kansas. Most of his decendents remained in the Topeka area. Any information regarding James and his ancestors would be very much appreciated. I would also be happy to share more of what I have learned with others.

I am also interested in the surnames ZAHNER, HORAK, MCDANIEL, and MATHES. At least the most recent 3 generations of these relatives have lived in Iowa, Kansas, and Missouri.