We searched for both of them for quite a while without success. Then we found some persons called Probst amoung the descendants of Henrich Wilhelm Wefel zum Felde who lived in Wisconsin. E. g. Hermann Heinrich Wefel married Maria Ann Probst about 1859 in Liberty Township, Grant County. Just pure chance?

While looking for Maria Ann's ancestors, we found that her father's name was Gerhard Henry. He died Feb 24th, 1861 in Lancaster at the age of 64. So this Gerhard Henry Probst was born about 1806!!!

Until now, we know that Henry Probst's wife's name was Mary and they had five children:
1. Eliza, born abt. 1839 in Ohio.
2. Maria Ann, born Sep 10, 1840 in Indiana, married Hermann Heinrich Wefel.
3. William, born abt. 1848 in Indiana.
4. Daniel Heinrich, born Aug 12, 1852 in Wisconsin, married Anna Marie Maschmeyer.
5. Clara Arina, born Feb 23, 1854 in Wisconsin, married Adam Heinrich Niemann.
The two husbands and the wife of the Probst siblings are related.

Still, we couldn't find Friedrich but I was sure that if I would follow back Henry's way from Ohio to Wisconsin, I'll maybe would find his brother.

It was pure chance that Carolyn Naas was looking for Probst, too. She was researching the former owners of her brother's house. There's an incription on the wooden lintel above the front door of this house:

While searching the web for F. Probst, Carolyn found my message that I had posted at ancestry.com. By now it's prooved that this F. Probst is the one I was looking for, for his burial entry gived his birth date and place correctly.

So that is what we know about Friedrich Probst by now:
He died Mar 23, 1890 in Aurora, Indiana and he married Feb 7, 1839 in Cincinnati, Ohio, Anna Marie Elisabeth Wichmann, born Sep 20, 1816 in Hunteburg, Germany, died Nov 11, 1895 in Aurora.
Their marriage was blesses with nine children:
1. Mary Louise, born abt. 1840 in Ohio, married Henry A. Kassebaum.
2. Anna M. or Eliza, born abt. 1842 in Indiana.
3. Catharine Maria, born Sep 14, 1844 in Indiana, died Sep 21, 1845.
4. Emma/Emily Elise or Anna, born Aug 29, 1846, died Aug 11, 1921 in Aurora.
5. John William, born abt. 1849 in Indiana.
6. Henry J., born Jun 13, 1851 in Ripley Co., IN, died Jul 1, 1894 in Aurora, married Mary Bannagel.
7. Catharine Louisa/Lucy, born Jun 20, 1853 in Indiana, died May 5, 1930 in Indiana, married John Herman Fisse.
8. Julia Anna, born Dec 23, 1856, married Herman Schulte.
9. George C., born Apr 19, 1858.
Seven of these nine children survived their father.

In January 1861, Henry Probst wrote down his last will. Maybe he was ill for he died a month later. At the time this last will was written, only three children of Henry Probst were still alive.

Here is his last will:

I Henry Probst of Grant County Wisconsin desiring to provide for the disposal of my property that may remain at my decease so that my wishes in regard thereto may be observed do make this as my will + testament

1st I appoint my wife Mary Probst the Executive of this my last will - and I authorize and empower her to have hold use and occupy all the estate both real + personal which may remain at my death - during the minority of our two children Daniel Probst + Clara A Probst. The said child am to live with and be supported by their mother until they shall respectively arrive of age - And I authorize and empower the said Executive of my will to sell and convey as she may deem advantageous any real estate or personal property belonging to my said estate.

2nd To each of said children Daniel Probst + Clara A Probst I give and bequeath two thousand Dollars to each of them - to be paid to them respectively on their obtaining full age of twenty one years - in cash - the said sum of two thousand dollars to each of them being the same sum by me already advanced to my daughter Mary Ann now wife of Hermann H Wefel as her portion of my property and I charge all my estate both real and personal with the payment of said too thousand dollars to each of my said children first named - as Daniel and Clara A -

3rd To my wife Mary Probst I give + bequeath all the rest and residue of all my estate both real and personal - so long as she may remain a widow -

In case she shall marry again then + in that case - it is my will that after the payment of said four thousand Dollar to my said two children Daniel + Clara as above specified - that all my estate both real + personal shall be equally divided among my three children above named and the representatives of them - and immediately upon the marriage of my said wife Mary Probst - this my will - that she shall forfeit all right to and authority over my and all my said estate that may remain upon the happening of such marriage except the sum of one hundred Dollars which I bequeath to her as her sole potion of all my estate - in case she shall again marry -

4th to make the share of my said two children Daniel + Clara equal to the advance made to my daughter Mary Ann - who received her advancement at the age of eighteen years - I will and bequeath to each said Daniel + Clara - in addition to said two thousand Dollars each - an amount equal to the lawful interest of two thousand Dollars for the three years next before they shall respectively arrive to the age of twenty one years - which last bequest I also make a charge upon all my estate both real + personal
Henry Probst