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William A. Cassidy

William A. Cassidy obituary, Hamden, CT

FUNERAL HOME

Sisk Brothers Funeral Home - Hamden

3105 Whitney Ave.

Hamden, Connecticut

UPCOMING SERVICE

Calling Hours

Dec. 27, 2025

8:30 a.m. - 10:30 a.m.

Sisk Brothers Funeral Home

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William Cassidy Obituary

William A. Cassidy
William (Bill) A. Cassidy 90, of Hamden passed away peacefully on December 21, 2025, at home surrounded by his loving children. Husband of the late Rosemary Ferrucci Cassidy. Loving father of Kevin (Barbara) Cassidy, Sharon (Jim) Welch, Janet (Bill) Coughlin, Brian (LeAnn) Cassidy, David (Laura) Cassidy, Laura (Greg) Capuano, and Leigh (Jerry Nero) Cassidy. Bill was born in New Haven December 3, 1935, son of the late John and Edith Miller Cassidy. Predeceased by his brothers John, Jim, Clayton, and sisters Margaret and Mary. He had 21 grandchildren and 18 great-grandchildren. He leaves behind many nieces, nephews and brother and sister in-laws. The family would like to offer heartfelt thanks to his live in caregivers Margaret, Ruth, Annette, and Carmen. Bill was a proud graduate of Notre Dame High School of West Haven. Bill began his working career at the New Haven Railroad and then went on to work many years and retired from the Town of Hamden. Funeral from Sisk Brothers Funeral Home, 3105 Whitney Ave., Hamden Saturday at 10:30 a.m., Mass of Christian Burial at 11 a.m. in Blessed Sacrament Church. Burial in Beaverdale Memorial Park. Visitation will be Saturday from 8:30 - 10:30 a.m. To leave an online condolence, please visit Sisk Brothers Funeral Home, LLC

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

Published by The New Haven Register from Dec. 23 to Dec. 24, 2025.

Memorial Events
for William Cassidy

Dec

27

Calling hours

8:30 a.m. - 10:30 a.m.

Sisk Brothers Funeral Home

3105 Whitney Ave., Hamden, CT 06518

Dec

27

Funeral Mass

11:00 a.m.

Blessed Sacrament Church

321 Circular Ave. Hamden, CT

Funeral services provided by:

Sisk Brothers Funeral Home - Hamden

3105 Whitney Ave., Hamden, CT 06518

Memories and Condolences
for William Cassidy

Sponsored by NHRegister.com.

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4 Entries

Sister Linda

Yesterday

Dear David and family, My first message was incomplete so here is the rest: I was sorry to hear about your father. May he rest in the peace of God. May our Lord give you all the strength and and peace that each of you need. His name is on our chapel prayer board God bless each of you. Sister Linda

Sister Linda

Yesterday

Dear David and family, I'm sorry to hear about your

Win Wolf

Yesterday

Bill, Rosemary & family were my friends & next door neighbors for decades. I am so sad to hear of his passing. He was an avid gardener who kept a beautiful yard of vegetables & flowers. My deepest sympathy to his family. God bless.

Jacqui Graf Smith

Yesterday

David, Brian and all the Cassidy kids, my deepest sympathies on the loss of your Dad. I'm so very sorry. My love to you all, peace and blessings.

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