This is a Message Board Post that is gatewayed to this mailing list. Classification: Query Message Board URL: http://boards.ancestry.com/mbexec/msg/rw/gV.2ADEB/4184.1.1.1 Message Board Post: Hi Chris, You wanted to know what the House of Mary was. Well when John Peden and Margaret "Peggy" McDill came to this country from Ireland in 1772 they brought with them several children their olde.st was Mary who was married to James Alexander. Each one of John and Peggy's children was considered a House to keep them stright. That is why we are from the House of Mary. If you get the book onPedens of America each House is broken down in the book. I hope this will explain. If you have more questions let me know. What house are you from? Nancy