You will select 2 people (or more) in your family ancestry that have immigrated to the United States to research. The people can be from either side of the family (both from Dad's side, both from Mom's side, one from Mom's side and one from Dad's side, etc. For example:
Mr. Hitchcock's Great Grandfather (dad's side) immigrated to the U.S. from Ireland
Mr. Hitchcock's Great Great Grandmother (mom's side) immigrated to the U.S. from England.
Use the "My Heritage Map Guide Sheet" to record as much information as you can. Some information may not be known such as "The Journey."