Thanksgiving is Here! by Diane Goode

From chapters.ca:
Maggie knows that Gramdma and Grandpa rise early on Thanksgiving morning. They want to get the turkey in the oven before the guests arrive and the commotion begins. Maggie’s glamorous aunt, a crybaby, an uncle with a slippery hairpiece, and an acrobatic cousin are just a few of the twenty- eight relatives and friends who come to help, "yackety-yak," and eat. As day stretches into evening, events unfold. There’s a mysterious present, a budding romance, and a little dog that tags after Maggie. But whose dog is he? And what’s Great- Grandma knitting? There is so much to discover here? Like a memorable meal with family and friends, this joyous celebration of Thanksgiving will leave you smiling and fulfilled.