"awkward squad"/ sayings

Posted by SR on January 19, 2005

While reading one of my old books, "Reed's Word Lessons" published by Charles E. Merrill Co. of New York in 1907, I came upon a lesson that instructs the writer to 'join the "akward squad."' Any ideas on origin and meaning?
The book also contains some wonderful unattributed sayings. Is anyone familiar with...
'Error is not always guilt.'
'Our doubts are traitors.'
'Make no truce with error.'
Again, I appreciate your responses.