Well after many years of searching I have gotten some headway. Here is some of my Cowan notes.

My Grandfather.. well one of them.. Direct line.

Thomas Cohen born 1832 or 1828 I have conflicting info in Ireland,  He however died August 6, 1891 in Pennsylvania . He is buried at Calvary Episcopal Cemetery, Aston Mills, Delaware County, PA

I have a wife for Thomas, Catherine born September 12, 1841 in Ireland.. She died February 20, 1916 in Pennsylvania age 75.  I have her father as John Kelvey and her mother Mary Armstrong both born in Ireland. I am wondering if McKelvey. She is buried at Calvary Episcopal Cemetery, Aston Mills, Delaware County, PA

The children of this union is as follows in Pennsylvania

William Thomas born about 1857

Sarah Elizabeth known as Lizzie who married a Johnson born 1859

James born 1861

Robert F born 1864

John W born 1867

Henry born 1870

Margaret Jane which is my great Grandmother who married William K. Vanzant and ended up in Anniston, AL  they came from Chester PA  born 1872

Noble born 1874

Frederick Alfred born 1878  he ended up in Detroit Michigan where some years later he died.

If any of you have any information please email me at SadieMaesAttic@aol.com and put  COWAN info in the subject.