Below are links to websites of interest:

The General Society of Mayflower Descendants
http://www.themayflowersociety.org

Caleb Johnson's Mayflower History
http://www.mayflowerhistory.com
http://mayflowerhistory.com/hopkins-stephen/

Further details on Stephen Hopkins' life
http://pilgrimhall.org/stephen_hopkins.htm

Flagon and Trenchers, the Society of the Descendants of Colonial Tavern Keepers
http://www.flagonandtrencher.org

Plimoth Patuxet Museums and the Mayflower II
http://www.plimoth.org

Nickerson Family Association
http://nickersonassoc.com/

Mayflower II in Drydock- 2011
http://youtu.be/ppDw52cWWtQ

Cromartie Family Association
http://www.cromartiefamilyassociation.com
All twelve children and their descendants are Hopkins descendants through their Mother, Ruhamah Doane

Jamestowne Society
http://www.jamestowne.org

The Hereditary Society Community of the United States of America
http://www.Hereditary.us/