O.B. Davis Funeral Homes - Miller Place

1001 Route 25A, Miller Place, NY


Kathleen D. Mongan

December 1, 1953June 24, 2020
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On Wednesday, June 24th, our family was devastated by the loss of my beautiful, funny, loving wife of 41 years after a short illness. She fought with everything she had but was finally overwhelmed. Her radiant, beautiful smile that lit up a room, and easy, contagious laugh will be terribly missed. She was the joy in my life. She was my best friend and I looked forward to being with her every day. She still made me laugh all the time, after all these years. She was upbeat, positive, caring and nurturing, and always made even the most common things fun. She loved her family; her children, Michael Mongan, and Marissa Jacobs, their spouses, Kristina Mongan and Elliot Jacobs, and her three grandchildren, Michael Mongan, Mila Mongan, and Keira Jacobs, as well as her granddaughter in heaven, Emma Alexandra Jacobs, with all her heart. Her grandchildren will miss their loving and fun "Grammie" terribly. She gave her boundless love to us unconditionally. I can't imagine life without her. She would want us to carry on though, as hard as it is to do. I have always been awed by her strength and resolve. She would want us to look for the positive, and the joy in life, as she always did. She was the sunshine in our lives and her example will be what I strive for. Kathy, you are gone way too soon, and I will always and forever love you.


  • Visitation

    Sunday, June 28, 2020

  • Services

    Monday, June 29, 2020

  • Interment

    Monday, June 29, 2020


Kathleen D. Mongan

have a memory or condolence to add?

Allyson Mongan

July 6, 2020

Aunt Kathy was one of those people who automatically lit up a room with her vibrant, upbeat energy. Her beautiful smile instantly made you feel welcomed and at ease. I know her light will continue to shine down on us. Above all Kathy was an outstanding mother and wife. I know she will continue to look after Michael, Marissa and Mike now and be their protector from Heaven. She will be missed beyond words but remain close to our hearts and in our prayers forever.

Lynda Collins

July 3, 2020

Where do you start? What words do you use? How could you possibly express what is in your heart when you loss such a special person so suddenly. We were blessed to have Kathy (Mike Sr & Marissa) become part of our lives when our daughter Kristina met and married Michael Jr. just under 10 yrs ago. From that moment on we became one melded family. We have shared so much in such a short time, from birthday's to tropical vacations. We were smother in-laws and co-grammies. We couldn't get enough time together as a family. I'm grateful for all the laughter and love we shared. Kathy had a radiant spirit, she was always upbeat, easy to laugh, willing to listen and always loving and kind. I will cherish these memories and share them often with our grand babies so that her spirit will remain ever present. I will love & miss her until I meet her again.

Walter Dahlmann

July 2, 2020

I was with Mike when he first met Kathy at the Pump House in Islip. We remained friends over all these years; They made a perfect pair. She was the nicest, kindest person, I enjoyed going to the wineries on the east end and having Kathy and Mike down to the house in Florida. She loved everything and everyone, except for maybe the palmetto bug on the ceiling. I will truly miss her smiling face.

Jaime Carfora

July 1, 2020

I’ve had the pleasure of knowing Kathy for the last 24 years. Many of my memories growing up were spent at the Mongan’s house. Many sleepovers, or trips to the mall packing all of us girls out in her Eclipse. Mike and Kathy even one time took a Marissa, Becky and I to Puerto Rico for spring break. As an adult now they were brave beyond belief to take us. These memories and many more will always hold a special place in my heart. Kathy you and your infectious laugh will never be forgotten. Thank you for giving me my lifetime friend. We will all hold her and your family in our hearts during this incredibly difficult time.

Edward Haran

July 1, 2020

Kathy is going to be missed terribly. She was a wonderful wife, mother and grandmother. She also was one of the most caring and pleasant people we ever met. May God Bless her and may God Bless her family.
Edward and Linda Haran

Lisa (Carroll) Allen

June 30, 2020

Dear Michael and family,

Your are in my prayers. Kathy was a lovely lady, always so kind to everyone. My memories of her are her kindness and big smile.

God Bless you all,
Don, Lisa and Charles Allen

Michael Mongan

June 30, 2020

I've already written about my beautiful, amazing wife, but there is a story only those close to us know. I was single, partying with my friends every weekend, not looking for any entangling relationships; just out having a good time. I went with a buddy to what used to be the Pump House in Islip. I went almost every weekend to kick it off. I was having a drink at the bar with my friend, looked across the bar and saw Kathy with a couple of friends. I had never seen her there before. I was immediately intrigued by this beautiful blonde with an an amazing smile. I'm thinking, 'Wow. She's gorgeous." For some unknown reason, I said to him, "I'm going to marry that girl." He said something like, "Yeah. Good luck." I walked over to her and started talking. I was immediately struck by her beautiful smile, laugh, and sense of humor. She was like no one I had ever talked to before. It came time for her to leave. I offered to walk her to her car. She was still laughing on the way out. I asked her for her number. She gave me a number, but I was so panicked that it was fake and I'd never see her again. I'd never felt that way about anyone I had met casually. I asked her if that was really her number. She said, "I guess you'll find out." She gave me another beautiful smile and left. The next day, I called her, dreading that it was a fake number. She answered, and we talked for hours. We started dating and were quickly in love. We were married less than a year after we met. She was the miracle in my life. She gave me so much joy and love. I could talk about her endlessly. She gave us two beautiful children who turned into amazing, responsible, hard working, loving adults; largely thanks to her influence. I have no regrets, other than not having more time to spend with her. I miss her every minute of every day, and always will. Our world has been completely altered by the loss of her. I will reunite with her someday, and our love story will continue.

Kathy Devine

June 30, 2020

Kathy was such an incredible sister in law. The love she and Michael had was so inspirational. Last February, she and Dot stopped to see us and the Murphy’s in Jupiter, Florida. Our plans that night didn’t go as expected and I thought Kathy would be disappointed. As we sat on the balcony with cheese, crackers and some wine looking at the ocean, she said this is one of my favorite trips. I was surprised she said that especially since Michael wasn’t there. I asked why. She said it’s because it’s the one I’m on right now. I asked her about past trips she went on with family and she says they were amazing at the time. But she says I may never come back here with all of you as we are, so it’s the best trip. Unfortunately, we will not have that trip to Jupiter again. I am so thankful I have that memory. That says it all. She loved every moment of life. I think we all need to take a lesson from Kathy as we move forward, if nothing else, do this for her.

John AlvareZ

June 28, 2020

My name is John Alvarez, I had worked with Kathy for several years at the Centereach Post Office. She was a beautiful woman inside and out, we always wondered how an elegant beautiful petite woman could do this demanding grueling job, but believe me, she more than held her own, she was amazing and a strong woman more than one would think, especially after all she had been through with her illness. Kathy will always have a special place in my heart, she was the kindest, sweetest, and funny woman I’ve come to know. She had left the Post Office and shortly I had left also to become a Correction Officer for the Suffolk County Sheriffs Office. She will be greatly missed, and I offer my condolences to the entire Mongan family!

Nancy Murphy

June 27, 2020

I cannot believe we lost such a beautiful, thoughtful,caring person. Kathy was a fun person who I had the pleasure of knowing when our families were joined together many years ago. It was such a gift to have known her. We had so many fun times together over the years. Holidays will never be the same... Kathy dearly loved her family. Kathy and Michael would always be seen smiling and holding hands. She was also an amazing Mother and Grandmother! She was always so happy with her beautiful family. This is a devastating loss for everyone and I and my family are going to miss her greatly... Goodbye Kathy, it was truly an honor knowing you.