Search billions of records on

Welcome to the Mahaney Genealogy website. My name is Michael Mahaney. Most of my research centers around the counties of Monroe and Ontario in New York State, but I have found ancestors from Canada, England, and Ireland and also from Massachusetts and Rhode Island. Some of my ancestors were among the first settlers in their area.

I am researching many family lines, if you click on any of the family names I list you will be taken to that family line's web page. Since genealogy is an ongoing process, check back often for updates, you may find a new family line listed or updated information on particular lines. If you find any incorrect information in my family line, or you have information to add, feel free to let me know.

Information on this site has come not only from my research, but also that of many others. I would like to thank a few of them right now. Thanks to Dianne Thomas, creator of the Ontario County History and Genealogy website; Michael Pierce for sharing information, obituaries and pictures; Pam Weaver for obituaries and pictures; Eleanor Parfitt and Sheryl Monsour for information on the Cartwrights and Brenda Wilson and Carol Pealow for information on the Pechlers. If I have left others out, please understand that I cannot remember everyone but that does not mean I do not appreciate the help that you have provided.

Here are some of my favorite websites:

Ontario County, NY History and Genealogy
Ontario, NY US GenWeb
Nancy Cunningham's Tillotson Genealogy
The Adams Genealogical Society