People : Lucy Costello to Meaghan Costello
Lucy Costello 3 people
Luke Costello 3 people
Lupe Costello 2 people
Lydia Costello 3 people
Lynda Costello 8 people
Lynn Costello 15 people
Lynne Costello 3 people
Madeline Costello 2 people
Malachy Costello 2 people
Mandy Costello 2 people
Marc Costello 2 people
Marcia Costello 4 people
Margaret Costello 62 people
Marguerite Costello 4 people
Maria Costello 26 people
Marian Costello 4 people
Mariann Costello 4 people
Marianne Costello 9 people
Marie Costello 23 people
Marilyn Costello 9 people
Marion Costello 14 people
Marisa Costello 3 people
Marissa Costello 6 people
Marjorie Costello 7 people
Mark Costello 61 people
Marlene Costello 5 people
Marshall Costello 3 people
Martha Costello 2 people
Martin Costello 17 people
Mary Costello 182 people
Maryann Costello 8 people
Marybeth Costello 2 people
Maryellen Costello 2 people
Maryjane Costello 2 people
Matilda Costello 3 people
Matt Costello 3 people
Matthew Costello 52 people
Maura Costello 9 people
Maureen Costello 29 people
Maurice Costello 4 people
Maxwell Costello 3 people
Meagan Costello 4 people
Meaghan Costello 12 people