Murphy Funeral Homes


LtCol Gregory Sean McSween

September 22, 1980November 9, 2021

With heavy hearts we announce the passing of LtCol Gregory Sean McSween, USMC, on November 9, 2021. Greg was an extraordinary son, brother, husband, and father who loved his family and country. Survived by his ever-devoted wife, Leanne, and their four beautiful children - Connor Andrew (11), Declan Sean (9), Owen Patrick (7), and Fiona Jane (4) - his legacy as a dedicated family man is showcased in the loving bond shared among his children.

Born at Fort Knox, Kentucky on September 22, 1980, Greg was the second of four children to LTC (R) Dave and Ann McSween. Along with older sister Allison (Erik), younger siblings Katie (John) and Brian (Regan), Greg enjoyed a tight-knit upbringing rooted in his Irish Catholic faith. The family endured eight military relocations prior to sixth grade, as Greg’s father was an active duty Army officer, culminating his Army career in the Washington, D.C. area. Family roots were established in Alexandria, VA in 1992 and have remained anchored to the area since.

Upon arriving in Alexandria, Greg discovered his love of soccer. This intense relationship carried him through high school, where he earned his status as a true athlete-student. His love of soccer was second in his devotion to escaping responsibility at home while somehow juxtaposing a solo effort to attain the rank of Eagle Scout, like his father.

Following graduation from Bishop Ireton High School in 1999, Greg’s passion for soccer carried him to play at Longwood University, where he met Leanne (nee Kibler), in November 2001. He, a walk-on three year player, and she, a three year starter on the women’s lacrosse team, cemented a true and impermeable bond which led to the creation of their own team- Team McSween- in the years ahead. Leanne stood with Greg in support as he attended Officer Candidate School while attending Longwood, where he was commissioned in 2003 as a Ground Intelligence Officer in the United States Marine Corps, following in the footsteps of his maternal grandfather.

Upon marrying in June 2006, Leanne stepped naturally into her role as the ultimate Semper Fi wife- never a task too great to undertake or neighbor to befriend. Greg and Leanne welcomed their four children throughout their military relocations with immense pride as they pursued their shared quest for adventure. Together, their travels led to exploring 24 countries with wonder in their journey as a family. Across five military relocations for assignments at Camp Lejeune NC, Quantico VA, Stuttgart Germany, and the Pentagon with five deployments intermixed along the way, Leanne demonstrated her tremendous strength in keeping all the trains running on time. Greg’s last assignment on the Joint Staff at the Pentagon finally afforded him the opportunity to live near family with military retirement on the horizon.

Greg is also survived by his wife’s family, Andy and Susan Kibler, sister-in-law Glenna (Geoffrey), and brother-in-law Jackson (Amanda). Beyond immediate family, Uncle Greg will be sorely missed by nieces and nephews: Keegan, Adeline, Eloise, Henry, Madison, MacKenzie, Jack, Palmer, and June. In addition, twenty aunts and uncles and 34 first cousins make up a small portion of the extended family that share fond memories of Greg. So ingrained in Greg was his ability to develop deep, lasting friendships throughout all the chapters of his life, and carry that forward despite distance, time, and the daily grind of life.

We join him in the enduring search of the perfect pitch, beer chilled to the right temperature, a well-stoked fire utilizing wood split and stacked by hand, a perfectly timed one-liner delivered with masterful dry humor, and the warm comfort of a not-too-long embrace as we yearn to find peace with the Irish Goodbye that was ultimately his last measure. We honor his legacy by carrying forward his spirit within each of us. Cheers to our hero until we may see you on the other side.

Greg will be laid to rest at Arlington National Cemetery at a date to be announced.

If so inclined, contributions can be made to a GoFundMe page (, with charitable donations to be directed by Leanne at a future date.


No public services are scheduled at this time. Receive a notification when services are updated.


LtCol Gregory Sean McSween

have a memory or condolence to add?

Tim Gill

November 23, 2021

Greg was a neighbor, a dear friend and a fellow veteran in the fighting our war on terrorism. I had the wonderful opportunity to meet Leanne and their beautiful family. Such a tragedy.
Over the past year and a half, Greg and I would meet on my porch, drink our favorite whiskeys and discuss our experiences overseas. It was therapeutic for both of us as we talked, laughed and cried over the loss of many of our good friends, and colleagues that did not have the opportunity to make it home. God Bless you my brother and look forward to meeting you again. God Bless Greg's family that they may flourish under the spiritual protection of Greg as he looks down upon them.

Jan Anderson

November 23, 2021

Dear Ann and Dave and your entire family,
Andy and I cannot imagine your loss. We were honored to know Greg and his family. He was a bright, shining light to everyone he met. Our prayers go out to Leanne and the children. We hold you in our prayers.
Our love to you all. Jan and Andy Anderson

Gina Garcia

November 17, 2021

I have so many great memories of Greg in my Spanish IV class at Bishop Ireton. He was a great student and I had heard that he went on to do so many great things.
My condolences go out to the entire family and I am so sad for your loss.
He will be missed by so many in the Bishop Ireton community!
Be assured of my heartfelt prayers for Greg and all the family at this most difficult time.
Gina Garcia, Bishop Ireton High School

Lindagale Dube

November 17, 2021

I worked as the librarian at Bishop Ireton High school and remember Greg and Allison very well as lovely kids. I remember Ann in the library, also. My condolences to the family; I am so sorry to hear this.

Katie Rogers

November 17, 2021

I have just heard about Greg and my heart is so heavy for you all.
It is unfathomable and so hard to believe.
I still remember Greg at BI as your little brother. He was so smiley with the shock of blonde hair.
Nothing I can say can take away this pain and sense of loss. Just know we are thinking of you and your family.
Katie and Andy Rogers

Ashley Mroczek

November 17, 2021

My most clear, lasting image of Greg McSween is him on the Ireton soccer field in the signature white home team uniform with his shaggy mop of blond hair. He was a ferocious soccer player with a heart of pure gold. His carefree and easy-going nature made him truly loved by all at BI. I am so sorry to hear of his passing, my most heartfelt condolences to his family.

Anna Berger

November 17, 2021

I taught at BI - religion and at least two of the McSween students Please accept my deepest sympathy and know you are all in my prayers. Anna Berger

Andy andvJan Anderson

November 16, 2021

Our hearts and prayers go out to Ann and Dave, Leanne, their children and the entire families of both Greg and Leanne. We know your hearts are broken. We know you will lean on your faith and the strength and love of your families. Our love goes out to you all. Jan and Andy Anderson.

Christine Farrell

November 16, 2021

Greg was my Godfather and when taking that role he stood by it. He would send me a birthday card with a little something every year until he had his own kids but he still took time out of his busy schedule to text me Happy Birthday. My fond memory is when Greg asked me to be a flower girl in his wedding. I was so beyond excited that I got to be part of Leanne's and Greg's special day.