Mary Grace Hannigan

Mary Grace Hannigan obituary

Mary Grace Hannigan

Mary Hannigan Obituary

Obituary published on Legacy.com by T.J. McGowan Sons Funeral Homes - Garnerville on Dec. 9, 2025.
Mary Grace Hannigan of Stony Point passed away at home on Sunday, December 7th from a long illness. She was 71 years old. Mary Grace was born in Suffern, NY on July 15th, 1954, to Marie and Tommy Alsdorf. Mary Grace worked for years on the clerical staff in Letchworth Village and retired in 2009. In recent years, she worked as Hostess at Hogan's Nyack Diner and is remembered by her customers for her warm greetings and cheerful smile. She loved and was loved by her family and friends, especially her grandchildren. She will be greatly missed by all who knew her.

Mary Grace is survived by her children Jessie and Danny. Her grandchildren Jeremy, Chloe, Madison and Gavin. Her sister Kathy Alsdorf of Pomona, brother Skip Alsdorf of Cortlandt Manor and her sister-in-law Carol Michella of South Carolina. She was predeceased by her brother, Timothy Alsdorf.

Family will receive friends Wednesday, December 10th, 2025, from 4pm-8pm at TJ McGowan Sons Funeral Home in Garnerville, NY. A graveside will be held on Thursday, December 11th, 2025, 11am at St. Peter's Cemetery, Haverstraw, NY.

In lieu of flowers contributions may be made to The American Cancer Society.

To plant trees in memory, please visit the Sympathy Store.

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January 3, 2026

Janet Lamanna posted to the memorial.

January 3, 2026

Carrie Fogarty posted to the memorial.

December 10, 2025

Michael Slapp posted to the memorial.

5 Entries

Janet Lamanna

January 3, 2026

I´m so sad to find out today about my beautiful friend that passed away. I have a lot of memories that I will treasure forever! I love you Mary Grace. Forever in my heart Janet!

Carrie Fogarty

January 3, 2026

So sorry to hear the news of her passing. Her bright smile will be missed and remembered by many. She was the best hostess ever. Rest in peace Mary Grace.

Michael Slapp

December 10, 2025

My wonderful godmother, the only person who ever called me Mikey, I know we didn't see each other much in recent years, but you will always be loved and missed. I will always remember your smile, your laugh, and the many weekends I spent at your house growing up. Thank you for everything.

Anne Kohut

December 10, 2025

So sorry to hear the sad news.Marygrace was a wonderful person who will be missed by all who knew her. Rest In Peace.

GEORGE HOGAN

December 9, 2025

OUR ANGEL HAS GONE TO HEAVEN
ALL MY LUV ALWAYS

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T.J. McGowan Sons Funeral Homes - Garnerville

71 N. Central Hwy., Garnerville, NY 10923

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Sign Mary Hannigan's Guest Book

Not sure what to say?

January 3, 2026

Janet Lamanna posted to the memorial.

January 3, 2026

Carrie Fogarty posted to the memorial.

December 10, 2025

Michael Slapp posted to the memorial.