John Dolbeer, Date of Birth, Place of Birth, Date of Death
TweetJohn Dolbeer
American inventor
Date of Birth: 12-Mar-1827
Place of Birth: Epsom, New Hampshire, United States
Date of Death: 17-Aug-1902
Profession: entrepreneur
Nationality: United States
Zodiac Sign: Pisces 
About John Dolbeer
- John Dolbeer (March 12, 1827 – August 17, 1902) was a partner in the Dolbeer & Carson Lumber Co., one of the early major Humboldt County, California lumber operations based in Eureka.
- While in that business, he invented the logging engine, more commonly known as the steam donkey or donkey engine.
- This invaluable equipment, especially with regard to difficult terrain and very large trees, revolutionized 19th century logging so significantly that variations of the engine were still used well into the 20th Century.
Read more at Wikipedia