Am looking for info and relatives of my great-great grandfather FREDERICK OLTERSDORF (born approx 1851 in KOENIGSBERG, EAST PRUSSIA). He came to the US in approx 1885 with his wife EMMA (don't know maiden name), also born in KOENIGSBERG, EAST PRUSSIA. They settled in Michigan, (Detroit Area-Macomb, etc.), and he worked at DRY DOCK ENGINE WORKS in 1890. They had 3 kids that we know of (but it was told they had 21 kids!) The ones we know of are FREDERICK OLTERSDORF, born 1880 in KOENIGSBERG, EAST PRUSSIA and DIED SEPT 14, 1952 in Macomb County, Michigan. Don't know when. (Don';t know where or when Frederick Sr and Emma died), their other son was HUGH OLTERSDORF (born 1879 EAST PRUSSIA-died 1965, Detroit, Wayne County, Mich.) and HERMAN OLTERSDORF (born 1894, Detroit, Mich.-died 1986 in Ypsilanti, Washtenaw, Mich.), and RICHARD OLTERSDORF
(born 1895 Detroit, Wayne County and died 1976 in Detroit, Mich.) Some other names that come up are Lizzie, Lena, etc.

FREDERICK OLTERSDORF II married a lady named EDITH and they had 3 kids: ROSELLA, FREDERICK & MARVIN.

HERMAN OLTERSDORF married a lady named LOTTIE and they had 9 kids:LAWRENCE, JEANETTE, ROBERY, CLAYTON, LESTER, CLAIRE, FREDERICK, EARL and HAROLD.

Any information would be GREATLY appreciated.