June 1~4: Bitzi Baxter learns that her husband, Bo, has remarried and has a new son. She becomes jealous, and rekindles her romance with ex-boyfriend Harry Mills. They are engaged, but Harry ends the relationship at the wedding after finding out about Bitzi's past marriage.
↑In Issue 100, panel 2, the date of November 6 is circled on David's calendar as Thora's birthday. Since it was Thora's 100th birthday and the episode took place in 2014, Thora was born on November 6, 1914.
↑In the Arthur episode "Brother, Can You Spare a Clarinet?", Arthur says his birthday (May 25th) isn't for 7 more months, meaning the episode takes place in October. When they give Binky the repaired clarinet, Binky says his birthday is next month. Since Binky is in his second year of third grade in 2014-15, he was born in 2004.
↑According to the Arthur's Birthday book, Arthur and Muffy share a birthday on May 25. Since they are in third grade from 2014-15, they were born in 2006.
↑In the Arthur episode "Shelter from the Storm," Ladonna has her birthday party and Arthur mentions it is early June.
↑ 14.014.114.214.314.414.5She was in preschool during the 2014-15 school year (at least), which likely means she turned 5 between August 1, 2014 and July 31, 2015 (Elwood Wiki uses those dates as a standard school cut-off range, but unique cases do exist). However, preschool is a large age range and she may have been born much earlier or later.
↑In the Arthur episode "D.W.'s Perfect Wish," it is revealed that D.W. turned five years old on March 1 while Arthur was in third grade. Since Arthur's third grade takes place from 2014 to 2015, D.W. turned 5 on March 1, 2015, making her born in 2010.
↑ 16.016.1In the Arthur episode "Arthur's Baby," which takes place between 2014 and 2015, the Reads celebrate Kate's first birthday.
↑This is a summer birthday, which makes it less clear what year Ladonna was born in. The Elwood Wiki uses the standard school cut-off date of August 1 to July 31. Since Ladonna was born in June, we can assume that she was born in 2006 rather than 2005. However, it is possible that she is a unique case.