Bampy's sister is the sister of Bampy Botsford and Mr. Botsford. She’s the daughter of Great Grandpa Botsford and Great Grandma Botsford, the aunt of Tim Botsford, the aunt-in-law of Sally Botsford, the adoptive great-aunt of Becky Botsford and the great-aunt of TJ Botsford. She‘s depicted in Becky's family tree in The Ordinary, Extraordinary Botsfords.