
author
b. 1893
Remembered today for a practical early-20th-century guide to rigging, knots, and mechanical advantage, this little-known technical writer helped turn specialized know-how into a clear handbook for everyday use. His surviving work has endured through library scans and Project Gutenberg, giving modern readers a glimpse of applied engineering instruction from the 1920s.

by Homer J. (Homer Jackson) Dana, W. A. (William Armour) Pearl
William Armour Pearl was born in 1893 and is best known as the coauthor, with Homer J. Dana, of The Use of Ropes and Tackle, published in 1922. The book was issued through the State College of Washington and later preserved in digital archives, which is why his name still appears in library catalogs and Project Gutenberg today.
Very little biographical detail about Pearl seems to be widely documented online, so the safest picture is a modest one: he appears to have been a technical writer or educator connected with practical engineering instruction rather than a literary author in the usual sense. His surviving book focuses on rope work, knots, splices, and tackle systems, written to explain useful methods clearly and directly.
Available memorial records identify him as William Armour Pearl, born in 1893 and deceased in 1962. Even with only a few confirmed facts available, his work remains a useful example of the straightforward instructional books that supported industrial and engineering education in the early twentieth century.