Floral 17

Muriel (Duignan) Costello

February 4, 1921 ~ March 3, 2022 (age 101)


Muriel Costello (nee Duignan) of Hawthorne passed away peacefully in the comfort of her home on Thursday, March 3, 2022 in her 101st year. Muriel Costello was born in White Plains, NY on February 4, 1921 to Edward and Julia Duignan. She married Matthew Costello on September 4, 1948. She had two daughters Susan Hannon (Bill) of Sea Girt, NJ and Cynthia Minisci (Doug) of Thornwood, NY She had 4 grandchildren - Anthony (Heather), Mark (Kelly), Doug (Nadia) and Jessica (Chris). She also had three great grandchildren - Luca, Helena and Zoe.  Muriel had a twin brother Donald who predeceased her. Muriel was affectionately known as Sis named by her twin when they were kids. Sis loved her wide circle of friends of all ages. She had many interests - quilting being her favorite. She spoke often of all the good times in her life - from walking with her early morning walking group, her involvement with Holy Rosary Church, to summers at the beach in Milford, CT. But her favorite times were those spent with her family.  Sis worked during the war for Grand Central Station and was very active in the USO. She went on to work in various capacities but retired from the Boy Scouts of America where she worked many years as a receptionist.  To say she was loved and will be missed by all is an understatement.


Family and friends are invited to Pleasant Manor Funeral Home, Inc. 575 Columbus Avenue Thornwood, New York 10594 on Sunday, March 6, 2022 from 2:00 - 6:00 PM for visitation.  A Mass of Christian Burial will be celebrated for Muriel at Holy Rosary Church in Hawthorne on Monday, March 7, 2022 at 11:15 AM.  Muriel will be laid to rest alongside her beloved husband Matthew in their family plot at Mount Calvary Cemetery in White Plains, New York after the funeral mass.


in lieu of flowers, the family kindly asks that you please consider donations in Muriel's honor to: 

The American Legion 

PO Box 92

Thornwood, New York 10594


~ if you plan to attend the funeral mass on Monday, please arrive to Pleasant Manor by 10:00 AM or at Holy Rosary Church by 11:15 AM ~ 

To send flowers to the family or plant a tree in memory of Muriel (Duignan) Costello, please visit our floral store.


March 6, 2022

2:00 PM to 6:00 PM
Pleasant Manor Funeral Home, Inc.
575 Columbus Avenue
Thornwood, NY 10594

Mass of Christian Burial
March 7, 2022

11:15 AM
Holy Rosary Church
170 Bradhurst Avenue
Hawthorne, NY 10532

March 7, 2022

12:45 PM
Mount Calvary Cemetery
575 Hillside Avenue
White Plains, NY 10603

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