Roselawn Funeral Home & Memorial Gardens

1000 S Highway 175, Seagoville, TX


John William Koller Sr.

October 24, 1945August 18, 2019
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John William Koller, Sr. was born on October 24, 1945 in Dallas, Texas to James and Ruth Landwermeyer Koller and passed away peacefully on August 18, 2019. He is preceded in death by his parents, brothers-in-law, Charles Tucker and Bill Kimberling and sister-in law Sammy Koller. He is survived by his wife of 52 years, Geraldine, and their five children, John William Koller, Jr. and his wife Tracy, Lauri Bearden and her husband Ronnie, Sherri Guerra and her husband Sergio, Konni Hughes and her husband Michael, and Matthew Koller and his wife Casey. He is survived by their grandchildren, John William III, Payton and Reagan Koller, Logan and his wife Hunter, and Garret and Travis Bearden, Madison and Jackson Hughes, and McKenna, Kaylee, Klaire and Mallory Koller. He is also survived by sisters Patricia Kimberling and Barbara Tucker, brothers and sisters-in-law Mickey and Glenda, Thomas and Maxine and David and Robbie. William attended St. Joseph and St. Augustine Catholic Schools as a young boy, graduated from Seagoville High School in 1963, attended Henderson County Junior College and went on to receive his Bachelor’s and Master’s degrees from East Texas State University. After college he enjoyed a successful career in education, teaching middle school and high school in Dallas ISD for 16 years. For many years he and his nephew, Jim Kimberling, owned Gemko Landscape from which he retired in 2016. William was a self proclaimed piddler and would spend hours in his barn tinkering on a variety of projects, putting his “Koller engineering” to work. He enjoyed being a service to others at church and in the community. He was a member of the Combine Volunteer Fire Department for over 30 years and continued to monitor the emergency radio even when he could no longer go out on calls. His Catholic faith was the cornerstone of his life. He honored traditions and valued family above all and will be remembered most as a devoted husband, Daddy and Granpa.

A rosary service for John will be held Wednesday, August 21, 2019 from 5:30 PM to 6:00 PM at Roselawn Funeral Home immediately following with a visitation from 6:00 PM to 8:00 PM. A funeral service will occur Thursday, August 22, 2019 at 10:00 AM at Saint Martin Catholic Church, in Forney, TX . A graveside service will occur following the funeral service at Pleasant Grove Cemetery in Combine, TX.

Fond memories and expressions of sympathy may be shared at www.roselawn-funerals.com for the Koller family.


  • Larry Settles
  • Randy Roysdon
  • Hunter Ryan
  • Michael Campbell
  • Brad Westbrook
  • Derek Vest
  • Brandon Miller, Honorary Pallbearer


  • Rosary Service Wednesday, August 21, 2019
  • Visitation Wednesday, August 21, 2019
  • Funeral Service Thursday, August 22, 2019
  • Graveside Service Thursday, August 22, 2019


John William Koller Sr.

have a memory or condolence to add?

Vicki Travis

August 22, 2019

To Geraldine, my good friend from high school.
You and your family are in my thoughts and prayers.
I remember being a bridesmaid in your wedding 52 years ago.

Rick Cooper

August 21, 2019

Our thoughts are prayers go out to the family. We were classmates at Seagoville and members of the FFA/AG class with a group of other great guys. Rick Cooper

William Ambrose Rivera

August 20, 2019

He was a faithful member and officer of the Knights of Columbus which is how I came to know and respect him. He had the ear of the entire council whenever he spoke and am proud to have known him and become close to the family.

He was always willing to give a helping hand, to serve God and his fellow man with gracious charity and is an example to everyone on how to emulate ones own life.

If possible, heaven is a brighter place.


Donna & Pablo Gonzalez

August 20, 2019

We were so sorry to hear of Mr. Koller's passing. He was truly a godly man. He will be missed not only by his wonderful family, but by his many friends, especially those of us at St. Martin's. May he rest in peace.

Cody Sheppard

August 20, 2019

I never will forget the time I spent with him on the fire department. We fought a few fires together. I always enjoyed just sitting and talking with Mr. Koller. Anytime he saw me out and about he would always come up to me and shake my hand and ask how I was doing. He always had a calm and methodical demeanor when giving advice or presenting his opinion. He was a good man and I am thankful for the time I got spend with him and that I was fortunate enough to know him. My prayers are with your family.