Arbor Day Proclamation By Lynell Morgan - April 28, 2011 Elgin mayor Mike Schmitt signs a proclamation declaring Friday, April 29th as Arbor Day in the City of Elgin. Members of the Young N Lively Club, plus kindergarteners from Elgin Public and St. Boniface schools, will plant a tree in the City Park in observance of the holiday. ER Photo.