I am looking for information on my great grandfather, James Peter Madsen. He was born in Denmark, 06 Jan 1861. He came to the US about 1884 and lived in Oak Park and River Forest,Illinois. He had an excavating business. I believe his name in Denmark was Jens Peder Madsen. He died in River Forest, Illinois in 1921. His wife's name was Ellen Millan Madsen. Any information would be appreciated.