Organizing the United States

We're using Hold That Thought's U.S. Geography notebooking pages for an informal study on the U.S. States that will go from 2nd grade to 4th grade. I've divided the states by region and then by alphabetical order:

The Southern States (we live here):
Alabama - Arkansas - Florida - Georgia - Kentucky
Louisiana - Mississippi - North Carolina - South Carolina
Tennessee - Virginia

Mid-Atlantic States:
Delaware - Maryland - Pennslvania
New Jersey - West Virginia

The Northeastern States:
Connecticut - Maine - Massachusetts - New Hampshire
New York - Rhode Island - Vermont

The Midwest States
Illinois - Indiana - Iowa
Michigan - Minnesota - Missouri
Ohio - Wisconsin

The Southwest States:
Arizona - New Mexico - Oklahoma - Texas

The Great Plains States
Kansas - Nebraska - North Dakota - South Dakota

The Mountain States:
Colorado - Idaho - Montana - Nevada
Utah - Wyoming

The Pacific States
Alaska - California - Hawaii
Oregon - Washington