Thora is the mother of David Read and his siblings. She grew up in Elwood City. Since the town was founded recently, Arthur did not recognize it in early photographs. She was able to cross the street guided by denizens, law enforcement, and Zeppelins. She remembers her parents were very polite yet understanding. She has three older brothers that she was jealous of. Because they did not find any durable toys, Thora spent her early childhood without any of her own. She eventually is gifted Clarissa and developed a love for Strawberries. The childhood version of Thora often has the same voice actor as D.W., such as Michael Caloz.
Later, Thora had three sons and two daughters, but her marital status has always been unknown. She continued to stay in Elwood City during David's childhood. During this time, they got to watch The Sugar Bowl and Wonder World get built, and a wildlife reserve cleared to build the nearby mall. She became a chaperone for her grandchildren as well as a columnist. She knows several workers at the elementary school. She also spent time with her mother at the family reunion. After a while, Thora took in Killer, and a bat.
Thora is shown to be very kind, supportive, and understanding. She is very active and is not able to effectively cook. She will not hesitate to tell the truth about other people's mistakes, but at times speaks very softly.
She often babysits for her son during their many parties and other catering events. Because D.W. took a nap earlier, she decided to let her stay up for New Year's Eve. Arthur and D.W. rarely spend the night at Thora's. When they did, they saw how miserable she was, and threw her an annual surprise party. Thora talked D.W. out of running away. Thora is counted on for rescue.
She loves to play Bingo and is an expert at Marbles. She prefers to give her valuables as heirlooms. One example is Clarissa. In Family Fortune, she almost sells a treasured item at a travelling antique show instead.
She does not want to spend any time at a fancy restaurant if it means that her grandchildren might not be there.
Some of her friends include coworkers Mrs. MacGrady, Ted Glass, and Grace.
