Adam was born in Germany, Baveria, Furhstadt (sp?) 6/13/1879.In Germany he married an Anna.He left Anna there and immigrated to the US.He had four children with Anna:Lillian, Anna, Michael & Joseph.Once in the US he married Louise Wurtenberg (as spelled on her death certificate, she was born in Orange, Essex, NJ 12/31/1880.They had a son Frederick William b. 2/2/1915, my father.
I do know, Adam's father was Michael Eberhardt Louise's father was Frederick William Wurtenberg.Frederick fought in the battle of Gettysburg.
This Eberhardt family owned a farm in East Hanover, Morris, NJ.Thus, there is now an Eberhardt Road where the farm house now stands.Adam also worked for Thomas Edison, in his Menlo Park, West Orange, NJ lab.
He's believed to have immigrated around 1910 from Germany.