I am currently researching the surnames Einsfeld, Wolf, Hagemann and Hehir. Einsfeld's were from Hesse-Darmstadt and emigrated to Niagara County, NY in 1854. Wolf's and Hageman's were from Mecklenburg and emigrated to Niagara County, NY in 1857. Hehir's were from County Clare, Ireland and settled in Niagara County, NY in the mid to late 1800's.
Here are some of my favorite websites:
Family Tree Maker File (http://familytreemaker.genealogy.com/users/b/r/i/Kelly-A-Bright/index.html?Welcome=987194817)