Maud Hart Lovelace (1892-1980) based her Betsy-Tacy series on her own childhood. Her series still boasts legions of fans, many of whom are members of the Betsy-Tacy Society, a nati...view moreMaud Hart Lovelace (1892-1980) based her Betsy-Tacy series on her own childhood. Her series still boasts legions of fans, many of whom are members of the Betsy-Tacy Society, a national organization based in Mankato, Minnesota.view less