Looking for relatives of my great-grandfather's brother, Joseph Gerk. He was born in Marienfeld, Russia. He came to the US in 1905? Two brothers joined him, Mike and Pete. Joe left Sterling, CO between December 24 and January 1, 1909 or 1910, returning to his wife in Russia. He was not heard from after 1918 or 1919. Mike and Pete remained in Colorado until their deaths.