A Connected View of the Whole Internal Navigation of the United States – 1830
Brief descriptions of canals along the Merrimack River are on page 10.

A Description of the Canals and Rail Roads of the United States – 1840
A brief description of the state's canals begins on page 32.

An Accompaniment to Mitchell's Reference and Distance Map of the United States
A brief description of the canals along the Merrimack River, as of 1835.
 

Canals – New Hampshire
A collection of historical documents dealing with the state's canals.

Canals of The Merrimack River
A brief history and description of the canals, including a hypothetical trip up the river.
 

Ecological Revolutions: Nature, Gender, and Science in New England
A map of New England canals is on page 194.

Locks and Canals of the Merrimack River
Includes brief histories of the locks and canals.
 

Locks and Canals of the Merrimack River. Part I
An overview of the eleven canals built between 1809 and 1817 along the river, as extensions of the Middlesex Canal.
 

Locks and Canals of the Merrimack River. Part II
Continuation of Part I.
 

New Hampshire Canal System Historical Marker
Photo and text of the marker.

Report of the Secretary of the Treasury; on the Subject of Public Roads and Canals [1808]
Includes brief descriptions of some of the Merrimack River canals.

Transportation Canals of Eastern Mass. and South Central NH: A Different Perspective
Article about the role of this canal network in the industrialzation of New England and the development of other canals, including the Erie.