Historical clue formulations

• Image on the back of a Canadian nickel — 2019-09-12
• Oregon State mascot — 2017-07-07
• Feller in a forest? — 2016-06-19
• Symbol of busyness — 2015-12-16
• Furry feller? — 2012-08-12
• See 46-Across — 2012-05-05
• Title boy in an old sitcom — 2010-05-14
• Oregonian — 2009-05-20
• Oregonian — 1997-05-18