Adolf Seufert

Hi, I'm looking for relatives of my late grandfather, Adolf Seufert.He came to Canada from Germany when he was 17 or 18, in 1925 or 1926.Want to find relatives of his in Germany to go visit and share pics of their relatives here in Canada.A relative of his from Germany wrote a letter to my uncle but he lost it before I could see it.Not much else to go on and running out of ideas.Thanx.