She is also called Roly - Poly , or , generally , ' Rilla ' .
During the novel , which spans a period of about four years , Anne and Gilbert 's youngest child is born and is named Bertha Marilla Blythe .
Anne is also called Roly - Poly , or , generally , ' Rilla ' .
During the novel , which spans a period of about four years , Anne and Gilbert 's youngest child is born and is named Bertha Marilla Blythe .