I have none of those names in any of my family records. Even when I search the Internet, only my posts are found.
I found Bureau of Land Management Records in 1849 that led me to another Von Haegan. Have you used that resource yet? We may find something that ties our families stronger than the straws of a shared surname.
Have you uncovered more in the last 6 years? This is still pretty much a brick wall for me.