Elizabeth Ann Sizemore

Elizabeth was born on March 6, 1942, to Helen and Otto Roesch in Pierce City, Missouri. After graduating from high school in 1960, she moved to Kansas City where she lived and worked for several years. In 1967, she moved to Washington, D.C. and worked for U.S. congresswoman Martha Griffiths, who was also from Pierce City, Missouri.

It was in Washington D.C. where she met her husband, Richard C. Sizemore, and they married in 1969 and went on to have three children.

In 1971, Elizabeth and Richard moved to Richardson, Texas, with their firstborn, Malcolm, and their newborn baby, Erin. Three years later, they had their third child, Alexandra.

Elizabeth was a wonderful mother and wife and dedicated her life to her family. To help provide for her family, Elizabeth went to work and began her career as a property manager in the 80s. Even though Elizabeth worked, she never missed a beat at home. She ensured that her children always made it to their various activities, and she was present for every one of her children’s football, basketball, baseball, or soccer games, and ballet and piano recitals. She always had a home cooked meal ready for her family and made holidays warm and special. She was the glue that held everything and everyone together.

Elizabeth was enthusiastic about conservation and nature. In the 80s, she became passionate about the plight of the endangered Mexican Wolf and went to lobby on its behalf in front of the U.S. Congress. Elizabeth always had a sense of adventure and loved running rivers and camping on their banks. She also had a bucket list to visit all the U.S. National Parks and made it to 42 out of 63 of them. Known as Nana by her beloved grandchildren, Liz took each of her grandkids on trips to national parks and created special memories for each of them. Elizabeth delighted in her grandchildren and great granddaughters and loved being with family.

After retiring in 2021, at the age of 78, she moved to Tomball to be closer to her daughters and grandchildren. Liz, who never met a stranger, made friends instantly at the Tomball Community Center where she loved line dancing and crocheting with “the ladies". When she wasn’t running rivers or line dancing, Liz loved painting, reading, gardening, and loved watching the news. She was a true patriot and had a love of God and country. Liz was beloved by all who knew her, and she took genuine delight in getting to know others.

Elizabeth was predeceased by her husband, Richard Sizemore, and survived by her three children: Malcolm Sizemore, Erin Sumner, and Alexandra Sizemore; her grandchildren: Erica Kucera and her husband Blake, Will Sumner, Grant Sumner, Bailey Sizemore, and Mallory Sizemore; and great granddaughters Blakely Kucera and Wrenly Kucera.

The family requests that in lieu of flowers, donations be made to The Houston Coalition for Life or the National Park Foundation.

The family welcomes all that are able to attend the Committal Service at Dallas-Fort Worth National Cemetery on Wednesday, April 22, 2026 at 11:00 AM.