Slideshow: 2015 May Festival By Gary DeVon • May 15, 2015 3:24 pm Oroville's 2015 May Festival Community Float with Queen Ellamae Burnell and Princesses Faith Martin and Mikayla Scott. Oroville’s 2015 May Festival Community Float with Queen Ellamae Burnell and Princesses Faith Martin and Mikayla Scott. Oroville’s 2015 May Festival