In Loving

Kathleen Patricia Gannon

March 17, 1954 – December 26, 2021

Kathleen Patricia Gannon left life too soon on the afternoon of Sunday, December 26, 2021.

Patty was a caring mother, sister, daughter, niece, co-worker and friend.  She was born to John and Catherine Gannon in Washington, D.C. on March 17, 1954. She leaves behind her daughter, Eireanne Patricia Slagle; her twin brother, John Gannon; and her younger sister, Joan Gannon Davis.

Patty loved many things in life and always embraced those loves with passion and eagerness.  She was devoted to her daughter, loved her work and co-workers and the beach at Ocean City.  Patty loved her Irish heritage, being born on St. Patrick’s Day after all, she loved softball, she was a skilled and avid scuba-diver and was passionate about saving the ocean and marine life, specifically dolphins.  Patty enjoyed a varied and rewarding working career.  After high school she worked at the Department of Agriculture in Washington, D.C., found her way to the American Physical Therapy Association in Alexandria, Virginia and eventually landed the position of Senior Software Developer with TMA Resources where she helped architect the Personify platform.

As a single mother, Patty faced and overcame many hardships.  In addition to working full-time while raising her daughter, Patty took on the part-time job of delivering newspapers by van to local areas in the early morning hours with her child alongside. She would then take her daughter to day care and head off to her full-time position.  Despite these difficulties, Patty still found time to help her daughter discover new wonders of growing up near the nation’s capital and she continued to enjoy the friendships of her softball teammates.

Patty Gannon was loved by all that knew her well and we will miss her laughter, enthusiasm and excitement.

A funeral service will be held on Thursday, January 13, 2022, from 2:00 pm to 4:00 pm at Affinity Funeral Services, Richmond Chapel.  In lieu of flowers, donations may be made in Patty’s name to the Reef Restoration Foundation  (Click here to make a donation to Reef Restoration Foundation)



Richmond Chapel
2720 Enterprise Parkway
Richmond, Virginia, 23294


Thursday, January 13, 2022


2:00pm – 4:00pm

View Map & Directions




  1. Nancy McFalls January 4, 2022 at 12:07 pm - Reply

    Patty was an institution at Personify. She had such a depth of knowledge (having designed much of the system!) and was always ready to jump in and help colleagues get them up to speed or brainstorm a solution. Patty would gather as much information as she could find, retreat to mull it over, then craft a solution that considered every last detail.

    Whenever a birthday, wedding or baby was pending, Patty rallied her coworkers to celebrate the milestone. Although she ducked the camera at these events, she left her mark in our memories.

    RIP Patty… may the wind be always at your back.

  2. Brajesh Dubey January 5, 2022 at 10:34 am - Reply

    We have worked together in TMAR for abt 3-4 years and has got tremendous support from her on various part of personify application. She was very knowledgeable and had solutions for all kind of problem.

    This is a great loss for us. We have lost our guide and help.


  3. Mohan Agarwal January 6, 2022 at 8:05 am - Reply

    We have worked together in TMAR application. You are in our thoughts and prayers, always


  4. Mike Boring January 8, 2022 at 8:50 am - Reply

    I was a diving friend who knew Patty in the 70s. Although I had lost touch with her years ago, I remember her smile and enthusiasm for diving and life. Very sad news.

  5. Lori Hauver McCarthy January 10, 2022 at 2:45 pm - Reply

    I have so many great memories of Patty. I first met her when she was interviewing at TMA Resources in 2001, and her smile, laughter and kindness was the common thread in every interaction. I also helped her get her job at Abila many years later, which was my honor, given her talents . I have such respect for her incredible intelligence, her hardworking nature, and doing ‘whatever it took’ to deliver excellent solutions. And, always with a smile. We will all miss Patty, and I want to send my love and prayers to her family for this terrible loss. Heaven has gained a St. Patrick’s angel to watch over us.

  6. Joan Gannon Davis January 10, 2022 at 11:24 pm - Reply

    My dearest sister. I weep every morning when I realize, when I remember, that you are no longer with us. It seems so surreal. You are missed more than you can imagine. Your smile, your funnies, your enthusiasm, your wit … we will never be the same. So many times we didn’t get together because we were TOO BUSY. My heart is broken with grief. You are such a big part of our family. You are beautiful and I will never forget you. May you rest in the Peace of Our Lord and enjoy blessings forever.

  7. Carole Weigner January 13, 2022 at 9:44 am - Reply

    I met my dear friend Patty at the local Dive Shop when we were kids in our 20s We became best friends and experienced some cool dive trips and many many fun road trips to dive, go to concerts, even to Boston to attend a Women in Diving conference. She was quite busy with her job but when she had free time we were always having fun, sometimes just cooking. She helped me raise my twins and they have sweet memories of her, especially the time she dressed in full Easter Bunny costume and HOPPED from the corner to our house where they stood in amazement while she handed them candy then hopped back to her car around the corner. That was Patty—- always up for a good time and making others happy.
    We started a business together and had ideas for many more .
    One of my last memories was when she and Eireanne came to visit me after I moved to New Jersey and we spent the day running around in New York, having brunch at Tavern on the Green and after a buggy ride through Central Park we saw Lily Tomlin on Broadway.
    I could go on and on and here I was afraid to open these doors and try to put into words what kind of friend she was to me. The rest is way to personal so I will leave it at this.
    She was a wonderful mother and an incredible asset to every job she had. I’m sure her co workers will never forget her and her daughter will forever long for her embrace. To me she was the best friend I ever had or ever will.

  8. Anne Sheridan (née Gannon) January 13, 2022 at 12:56 pm - Reply

    Sincere sympathy to all Pattys family. May her gentle soul Rest in Peace. Thinking of you all at this very sad time. From her cousins in Ireland. Angela, Anne, Bernie, Jackie & Noel. (Gannon)

  9. Ann Ammerman January 14, 2022 at 12:13 pm - Reply

    I used to work with Patty – we were not particularly close, but always friendly. My heart is breaking for all of you as I read these comments. I hope that you soon only think about the happy things when you think of Patty.

  10. Brenda Ureke February 1, 2022 at 9:20 am - Reply

    Patty was a riot! You’d laugh and love every minute you were with her. We also became friends through diving in the 80’s through the 90’s then lost touch. I feel perhaps it was so she could find other people that needed her love to enhance their lives. She was always right where you needed her to be.
    I so wish we had not lost touch. She truly was the best friend a person could have. She brightened the lives of everyone she met. I’ve been hit hard with her passing because we Had lost touch. I knew whatever she was doing she was touching more lives and you were blessed to know her.
    Patty loved people and adored her daughter to the moon! We were tight during Eireanne’s early years. Patty naturally took Eireanne everywhere. Eireanne was Patty’s biggest blessing. Such a compliment to be a mini Patty. Patty will never be forgotten by her friends and St Patty’s Day will Always be hers! Love you Eireanne!!

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