Thanks to Matthew Dawson for the scans and links. Matt notes the similarity between Searle's Clever Owl and Tom Oreb's design of the owl teacher in Ward Kimball's 'Toot, Whistle, Plunk & Boom' (1953)
'A Tale of Good Faith'
'The Magic Owl'
'Doctor Fox'
'The Sick Fox'
'The Tiger In The Wood'
'Day of Good Deeds'