In working on the Wickerham's, my brother in law found something truly wonderful!In the late eighties there was a mailing for group of Wickerhams (I've nicknamed it the Wickerham Register). He has forwarded it on to me.
In the register, the first page ties up Jacob and Peter and Adam as being brothers, and also makes the association with Georg Adam Wickerham.There is also mention of the Wickerham-Chess cemetery in Monongahela, Washington County, Pennsylvania which is interesting.
I've found references to Adam Wickerham in the Revolution.I believe this is Georg.
It is also my theory that Jacob left after the Whiskey Rebellion as an Adam Wickerham (I believe to be Georg Adam, also this adam is in the same city, and region of the city that Jacob, from all accounts, came from) in the mid 1790s had to state an oath of allegence to America for his part in the Rebellion, it is as follows:
Oath of Allegiance
I do solemnly, in the presence of Almighty God, swear and declare that I will faithfully and sincerely support the Constitution of the United States, and obey all laws thereof, and will discontinue opposition thereto, except by way of petition and remonstrance, and all attempts to resist, obstruct, or illtreat the officers of the United States in the execution of their respective duties, so help me God.
Each person, in taking this oath, was required to subscribe his name thereto, as well as sign the following pledge:
In pursuance of the oath hereto annexed, I do hereby engage and associate to and with all others who may subscribe these presents to countenance and protect the officers of the United States in the execution of their duties according to law, and to discover and bring to justice all persons who may be concerned, directly or indirectly, in illegally hindering or obstructing the said officers, or any of them, in the execution of their duty, or in doing any manner of violence to them, or either of them. In witness of all which I have hereunto subscribed my hand the day and year opposite my name.
Thank you for posting Jacob's will.It was very interesting and very confusing to me.... Do you have the complete listing of Jacob's children?