I have collected a fair amount of information on this line while researching it for my sister-in-law. Her grandfather was Luther Edmund Dorrier b. 5/1/1883 Hancock MD son of William Henry Dorrier (1849-1933) and Cornelia Hamner b.Oct. 1852. William appears to be the son of Henry and Mina Dorrier from Brunswick Germany. The 1870 Census for Fulton Co. PA Union Twp. p. 6 lists: Dorrier,Henry61 Mina58 August24 William 20 The 1900 Census for Slate River Twp. Buckingham Co.Va lists William's year of immigration as 1867. He was still living in 1930 age 80.