Ellen MacGregor

15 May 1906 – 29 March 1954

• Miss Pickerell goes to Mars
• Miss Pickerell Goes to the Arctic
• Miss Pickerell on the moon
• Theodore Turtle
• Miss Pickerell and the weather satellite
• Miss Pickerell Goes Undersea
• Miss Pickerell on the trail
• Miss Pickerell takes the bull by the horns
• Miss Pickerell and the Geiger counter
• Miss Pickerell Goes on a Dig
• Miss Pickerell Harvests the Sea
• Miss Pickeral Goes to Mars (No 9)