According to family history and that of others, Maria(Mary, May?) was the first wife of Jacob Brant.Supposedly she lived to be over 100 years ( although I was never able to find her in any census) and is buried in Tarleton, Ohio.
Yes, Jacob and Mariah had several children together: Oliver (b. 1792), Jacob II(b. 1794), Sarah, (b.1798), John (b. 1799), Joseph (b. 1801).The early lines of Oliver (my ancestor) and Jacob II were done by Harry Townley Brant (descended from Oliver)and Inez Brant Leonard (descended from Jacob II) and are found in the book entitled The Brant-Overlin Saga, published in 1953.
I have continued the family tree from Oliver and am fairly up to date with it.I also have information about the descendants of Jacob II.If you are interested, please contact me via my email address for further information.