http://www.southampton.ac.uk/library/ldu/wsa.html

Collection of old knitting instruction books, scanned into PDF format. At least two of them include instructions for "knickerbocker or kilt hose for gentlemen." Here are individual links to the ones I found:

See pg 24

See pg 6

Some other interesting projects in the collection ("Ladies Work for Sailors," anybody?). Enjoy!