Where was grandma in the Waltons' episode of the grandchild?

In the "Waltons" episode titled "The Grandchild," Grandma Esther Walton is notably absent because she is away visiting relatives. Her absence is felt by the family as they navigate the challenges of welcoming a new grandchild. The episode focuses on the dynamics of the Walton family as they prepare for the new arrival and cope with Grandma's absence.