https://www.oregon.gov/odot/DMV/Pages/Online_Motorcycle_Moped_Manual/Section_8.aspx
Oregon Department of Transportation : Section Eight - Passengers, Cargo and Group Riding : Oregon...
Section Eight of the Motorcycle and Moped Manual
department of transportationsection eightoregon
https://oregonnews.uoregon.edu/lccn/sn99063957/1919-05-31/ed-1/seq-18/
Daily capital journal. (Salem, Or.) 1903-1919, May 31, 1919, AUTOMOBILE SECTION, Page PAGE EIGHT,...
Historic Oregon News
https://tf.nist.gov/phase/Properties/eight.htm
Section Eight
sectioneight