The Christian Zickert you are interested in is my wife's greatgrandfather.One of his sons, Bernard, is Bertha's brother and is my wife's grandfather. We have traced him back to Germany and have much information about his parents, etc. He was baptized Bernard Christian Frederich Heinrick Zickert on Oct 21, 1827 after having been born on Oct 18.
We have other information to pass on and are very interested in what you have learned.
Donald and Nancy Adolphson