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Onboard Experts, Historians and Riverlorians

American Cruise Lines invites carefully selected experts to join us on each of our cruises. Their informal lectures, open discussions and activities bring local history, nature and culture to life through their knowledge and passion for American heritage. These enlighteners, naturalists and historians also lead shore excursions to give our guests behind the scenes insight of some of America’s best-kept secrets and favorite treasures.

What is a Riverlorian? Created by combining the words river, lore and historian together, a Riverlorian is a knowledgeable person who shares the rich history and folklore of America's rivers with others.

Meet the experts of American Cruise Lines


 Sam Ladley

Sam Ladley


Sam Ladley is a New England maritime historian who has been traveling with American Cruise Lines for many years, giving enthusiastic presentations on themes such as colonial settlement, Native Americans, whaling history, coastal and island communities, and shipbuilding. Mr. Ladley's expertise in our country's nautical and colonial past will leave you with a deeper appreciation for the region you travel.

 Charles Petrocci

Charles Petrocci


Charles A. Petrocci has traveled and worked in more than 35 countries and has written over 900 articles and reports for universities, national and regional publications.  He currently serves as a maritime cultural heritage researcher and consultant for numerous reputable universities, museums, and non-profit organizations/foundations.  Mr. Petrocci's lectures focus on coastal maritime history, fisheries, and the heritage of the Atlantic Coast.

 Toots Maloy Riverlorian aboard Mississippi River cruises from American Cruise Lines

Karen "Toots" Maloy


Toots is an expert river historian with a distinguished history on America's rivers. A perennial passenger favorite, "Toots" brings the history and culture of America's great rivers to life with her wealth of knowledge.

Todd Weber


Todd Weber


Todd Weber brings tales of the patriots, fur traders, Indians and explorers of America alive through his period clothing and colorful presentation. This highly celebrated, river-running historian shares his appreciation for the stamina, ingenuity and character that existed in those who helped shape the history of America on the Columbia River.

2014 Onboard Experts!


American Cruise Lines' onboard experts are some of the most knowledgable and interesting people you'll ever meet. Most have been traveling with us for many years and are consistently lauded by passengers as a favorite part of their cruise.
 

Alaska Inside Passage

Todd Weber - River Running Historian
Tom Stanley - Naturalist

 

Maine Coast and Harbors

Karen Hammond – Author
Harold Cones – Biologist
Rachel Perkins - Landscape Geography
Joe Goldenberg – Historian
Charlie Petrocci - Environmentalist
Sam Ladley - Maritime Historian

 

Chesapeake Bay

Doug Weeks – Naturalist
Joe Goldenberg – Historian
Jack Shaum - Published Journalist
Tom Stanley – Naturalist
Charlie Petrocci - Environmentalist

 

Mid-Atlantic Inland Passage

Harold Cones – Biologist
Junius Rochester – Historian
Ralph Eshelman – Geologist
Charlie Petrocci - Environmentalist

 

Columbia and Snake Rivers

Todd Weber - River Running Historian
Junius Rochester - Historian
Ian Sampson - Interpretive Naturalist
Doug Weeks – Naturalist

 

Mississippi River

Toots Maloy - River Historian
Jim Williams - Naturalist
Richard Garay - Mark Twain Impersonator
Michael Deeb - Civil War Historian
Rachel Perkins - Landscape Geography
Sandy Balla – Historian
Charlie Petrocci – Environmentalist

 

Grand New England

Karen Hammon – Author
Joe Goldenberg – Historian
Jeremy D' Entremont – Historian

 

New England Islands

Charlie Petrocci – Environmentalist
Harold Cones – Biologist
Sandy Balla – Historian
Joe Goldenberg – Historian
Kit Van Wagner - Marine Scientist
Rachel Perkins - Landscape Geography
Sam Ladley - Maritime Historian
Bill Ewen - Maritime Historian

 

Great Rivers of Florida

Rachel Perkins - Landscape Geography
Tom Stanley – Naturalist
Charlie Petrocci -  Environmentalist
Harold Cones - Biologist

 

Hudson River

Bill Ewen - Maritime Historian
Rachel Perkins - Wildlife Ecologist
Doug Weeks – Naturalist
Sandy Balla – Historian
Joe Goldenberg – Historian
Tom Stanley – Naturalist
Sam Ladley - Maritime Historian

 

Historic South and Golden Isles

Joe Goldenberg – Historian
Charlie Petrocci – Environmentalist
Junius Rochester – Historian
Sandy Balla – Historian
Tom Stanley - Naturalist
Harold Cones – Biologist
Rachel Perkins - Landscape Geography
Ralph Eshelman – Geologist
Jack Shaum - Published Journalist

 

Puget Sound and San Juan Islands

Tom Stanley – Naturalist
Junius Rochester – Historian



2014 American Cruises Lines Brochure


 

What is a Riverlorian?

Created by combining the words river, lore and historian together, Riverlorian means a knowledgeable person who shares the history and folklore of America's Rivers with others.
  • The lectures were always remarkable and entertaining.
    Emily R., College Station, TX, New England Islands Cruise
  • Your historian was the best! Couldn’t have asked for better!
    Felix J., Huntington Beach, CA, Columbia & Snake Rivers Cruise
  • The evening lectures were very informative. You can't go wrong with American Cruise Lines.
    Arthur W., Elkins, NH, Maine Coast & Harbors Cruise
  • We especially enjoyed the onboard lectures. This was an excellent cruise.
    Mildred C., Sykesville, MD, Chesapeake Bay