Sadie Gwin Allen Blackburn
1924 - 2026
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Sadie Gwin Allen Blackburn passed away on March 13, 2026 at 101 years, a long life lived well.
Sadie Gwin was born in San Angelo, Texas to Helen Harris and H. Hicks Allen. She moved with her family to San Antonio and then to Houston in 1939 where she attended the newly built Lamar High School and graduated Valedictorian in 1941. Her first year of college was at Sweet Briar and she was honored with its Freshman Scholarship Award. Unpredictable war-time cross-country rail-travel prompted her transfer in 1942 to University of Texas at Austin for two years. She was elected Pledge President for Pi Beta Phi and Rush Chairman in 1943. Sadie Gwin completed college as an English major at Rice Institute in 1945, Magna Cum Laude and was selected for Phi Beta Kappa. Thirty years later, Sadie Gwin would return to Rice University in 1974-1976 and earn her master's degree in history and receive the Captain Charles Septimus Longcope Award for best thesis, commonly reserved only for doctoral dissertations.
Sadie Gwin's parents joined two Texas pioneer families. Her mother managed family cattle ranching and banking having descended from DeWitt Colony settlers in Gonzales, later migrating to San Antonio, and then homesteading open-range Caprock and Prairie lands north of San Angelo. Her father descended from Houston's Allen Family founders from New York with Charlotte Baldwin Allen settling via San Augustine and Nacogdoches to the muddy banks of Buffalo Bayou.
Sadie Gwin married Dr. Edward A. Blackburn, Jr., MD, a Lamar High schoolmate, in 1946. They partnered in virtually everything for over 63 years along with many dear friends and families, travelling, hunting, fishing, friends, clubs, arts, history, antiques, Texana, book-writing, charity, St. Martin's Episcopal Church, hobbies, children, grandchildren. They were thankful for friends including many who attended St Martins and were supportive through their lifetimes. Sadie Gwin encountered disappointments and it was devoted friends, deeply studied faith and trust in Lord God Almighty that nurtured her to press onward.
Sadie Gwin was active for a lifetime in Houston's community affairs largely centered around River Oaks Garden Club, Bayou Bend Gardens, Museum of Fine Arts, and Junior League of Houston among a plethora of other beloved organizations including The Colonial Dames and Neill-Cochran House in Austin.
Credit To River Oaks Garden Club Profile: " Sadie Gwin's community involvement reaches beyond the River Oaks Garden Club. She served as President of the Garden Club of America, Vice Chairman of the National Parks Conservation Association. She was a member of the Mercer Arboretum Advisory Council, Armand Bayou Advisory Board, Memorial Park Conservancy, Hermann Park Conservancy, Buffalo Bayou Partnership, and the Houston Chapter of the Nature Conservancy. Sadie Gwin served as President of the Board of the San Jacinto Museum of History and directed a special project to prepare a master plan for the San Jacinto Battlefield State Park. She was also a founding member of Asia Society Texas Center and served as Secretary of its Board.
Sadie Gwin earned several awards, including a Resolution of Appreciation from the San Jacinto Museum of History Board of Trustees a Leadership Award from the Park People. Friends of Hermann Park recognized her for "dedication to beauty, nature, and gardening," and Scenic Houston honored her as Houston's "Scenic Visionary."
Sadie Gwin Blackburn, an outstanding Houstonian devoted to conservation, preservation and environmental issues, is truly a Texas Treasure. "
Over the course of Sadie Gwin's years as a senior citizen, she was regularly surprised and truly humbled by other honors and awards presented for lifetime of service and accomplishments. Some of these include the Sweet Briar Distinguished Alumna Award, l99l; Resolution of Appreciation, San Jacinto Museum of History Board of Trustees, 1995; the Carolyn Helman Lichtenberg Crest Award, Pi Beta Phi Award for Community Service, 1998; Zone IX, Garden Club of America, Creative Leadership Award 1986, and Conservation Award, 2000; the Adelaide Lovett Baker Award, Junior League of Houston, 2006; Rice Design Alliance Award for Design Excellence, 2007.
Sadie Gwin became a frequent speaker and lecturer all the way to her 80's on a variety of topics including Garden and Architecture Design; Chinese Porcelain, Wares and Tomb Sculpture; Culture of Azaleas and Camellias; Parks; Wetlands; Buffalo Bayou; San Jacinto Battleground; Bayou Bend and Reinzi; Houston and Historic Neighborhoods among other subject areas. She was highly skilled in research and would dig deeply into subject areas making sure to retrieve all that was knowable and sharing it in her confident writing style. This proved helpful when teaming up with like-minded friends and associates in the shared authorship of Houston's Forgotten Heritage: Landscapes, Houses, Interiors, 1824-1914.
Sadie Gwin's gift of abundant intellect, drive, curiosity, fascination, and joy of sharing with like-minded others enriched her life. She was interested in every person encountered, making sure to learn as much as possible and identify common and complementary interests to include them socially or otherwise. It was an effective team-building approach that could advance organizational formation and advancement. She was a listener, encourager, inspirer, uplifter, enabler, organizer, builder; but also, a determined executive who was undaunted to reach a goal or milestone along the way. For years her friends, associates and others have called her a Treasure.
Sadie Gwin is pre-deceased by her parents, her husband of 63 years, her sister Helen Harris Willcockson, her son Edward A. Blackburn, III, her daughter Catherine Ledyard Blackburn.
She is survived by her son Robert Allen Blackburn and wife Cynthia Walker Blackburn; her granddaughters Sarah Catherine Blackburn with husband Jimmy Jenkins; Catherine Blackburn Frazier with husband Stuart Frazier and Sadie Gwin's great-grandchildren Ella, James, Fort and Austin Frazier; Caro Elizabeth Key Blackburn; and grandson Robert Allen Blackburn, Jr, along with nephews, nieces and cousins.
The Blackburn family is profoundly grateful for Sadie Gwin's caregivers Wanda Dean and Lillie Jones. And for steadfast, comprehensive household and personal care and services of Concepcion Moreno and Dora Montoya. The concern, care and responsiveness of Compassus Hospice is deeply appreciated, particularly for Stephanie, Kathy, Sharnisha, and Larry.
A Memorial Service is to be conducted at 2:00 o'clock in the afternoon on Friday, the 10th of April, 2026 at St. Martin's Episcopal Church, 717 Sage Road in Houston. Immediately following the service, all are invited to greet the family during a reception in Bagby Parish Hall.
Livestream: https://youtube.com/live/uvfqFEsrdhI?feature=share
Livestream replay is available for 3 weeks afterward.
Memorial contributions may be made to:
Sadie Gwin Blackburn Conservation Fund, River Oaks Garden Club, 2503 Westheimer, Houston, Texas 77098-1321, riveroaksgc.org.
St. Martin's Episcopal Church, 717 Sage Rd, Houston, TX 77056, www.stmartinsepiscopal.org.
Charity of choice.
Sadie Gwin was born in San Angelo, Texas to Helen Harris and H. Hicks Allen. She moved with her family to San Antonio and then to Houston in 1939 where she attended the newly built Lamar High School and graduated Valedictorian in 1941. Her first year of college was at Sweet Briar and she was honored with its Freshman Scholarship Award. Unpredictable war-time cross-country rail-travel prompted her transfer in 1942 to University of Texas at Austin for two years. She was elected Pledge President for Pi Beta Phi and Rush Chairman in 1943. Sadie Gwin completed college as an English major at Rice Institute in 1945, Magna Cum Laude and was selected for Phi Beta Kappa. Thirty years later, Sadie Gwin would return to Rice University in 1974-1976 and earn her master's degree in history and receive the Captain Charles Septimus Longcope Award for best thesis, commonly reserved only for doctoral dissertations.
Sadie Gwin's parents joined two Texas pioneer families. Her mother managed family cattle ranching and banking having descended from DeWitt Colony settlers in Gonzales, later migrating to San Antonio, and then homesteading open-range Caprock and Prairie lands north of San Angelo. Her father descended from Houston's Allen Family founders from New York with Charlotte Baldwin Allen settling via San Augustine and Nacogdoches to the muddy banks of Buffalo Bayou.
Sadie Gwin married Dr. Edward A. Blackburn, Jr., MD, a Lamar High schoolmate, in 1946. They partnered in virtually everything for over 63 years along with many dear friends and families, travelling, hunting, fishing, friends, clubs, arts, history, antiques, Texana, book-writing, charity, St. Martin's Episcopal Church, hobbies, children, grandchildren. They were thankful for friends including many who attended St Martins and were supportive through their lifetimes. Sadie Gwin encountered disappointments and it was devoted friends, deeply studied faith and trust in Lord God Almighty that nurtured her to press onward.
Sadie Gwin was active for a lifetime in Houston's community affairs largely centered around River Oaks Garden Club, Bayou Bend Gardens, Museum of Fine Arts, and Junior League of Houston among a plethora of other beloved organizations including The Colonial Dames and Neill-Cochran House in Austin.
Credit To River Oaks Garden Club Profile: " Sadie Gwin's community involvement reaches beyond the River Oaks Garden Club. She served as President of the Garden Club of America, Vice Chairman of the National Parks Conservation Association. She was a member of the Mercer Arboretum Advisory Council, Armand Bayou Advisory Board, Memorial Park Conservancy, Hermann Park Conservancy, Buffalo Bayou Partnership, and the Houston Chapter of the Nature Conservancy. Sadie Gwin served as President of the Board of the San Jacinto Museum of History and directed a special project to prepare a master plan for the San Jacinto Battlefield State Park. She was also a founding member of Asia Society Texas Center and served as Secretary of its Board.
Sadie Gwin earned several awards, including a Resolution of Appreciation from the San Jacinto Museum of History Board of Trustees a Leadership Award from the Park People. Friends of Hermann Park recognized her for "dedication to beauty, nature, and gardening," and Scenic Houston honored her as Houston's "Scenic Visionary."
Sadie Gwin Blackburn, an outstanding Houstonian devoted to conservation, preservation and environmental issues, is truly a Texas Treasure. "
Over the course of Sadie Gwin's years as a senior citizen, she was regularly surprised and truly humbled by other honors and awards presented for lifetime of service and accomplishments. Some of these include the Sweet Briar Distinguished Alumna Award, l99l; Resolution of Appreciation, San Jacinto Museum of History Board of Trustees, 1995; the Carolyn Helman Lichtenberg Crest Award, Pi Beta Phi Award for Community Service, 1998; Zone IX, Garden Club of America, Creative Leadership Award 1986, and Conservation Award, 2000; the Adelaide Lovett Baker Award, Junior League of Houston, 2006; Rice Design Alliance Award for Design Excellence, 2007.
Sadie Gwin became a frequent speaker and lecturer all the way to her 80's on a variety of topics including Garden and Architecture Design; Chinese Porcelain, Wares and Tomb Sculpture; Culture of Azaleas and Camellias; Parks; Wetlands; Buffalo Bayou; San Jacinto Battleground; Bayou Bend and Reinzi; Houston and Historic Neighborhoods among other subject areas. She was highly skilled in research and would dig deeply into subject areas making sure to retrieve all that was knowable and sharing it in her confident writing style. This proved helpful when teaming up with like-minded friends and associates in the shared authorship of Houston's Forgotten Heritage: Landscapes, Houses, Interiors, 1824-1914.
Sadie Gwin's gift of abundant intellect, drive, curiosity, fascination, and joy of sharing with like-minded others enriched her life. She was interested in every person encountered, making sure to learn as much as possible and identify common and complementary interests to include them socially or otherwise. It was an effective team-building approach that could advance organizational formation and advancement. She was a listener, encourager, inspirer, uplifter, enabler, organizer, builder; but also, a determined executive who was undaunted to reach a goal or milestone along the way. For years her friends, associates and others have called her a Treasure.
Sadie Gwin is pre-deceased by her parents, her husband of 63 years, her sister Helen Harris Willcockson, her son Edward A. Blackburn, III, her daughter Catherine Ledyard Blackburn.
She is survived by her son Robert Allen Blackburn and wife Cynthia Walker Blackburn; her granddaughters Sarah Catherine Blackburn with husband Jimmy Jenkins; Catherine Blackburn Frazier with husband Stuart Frazier and Sadie Gwin's great-grandchildren Ella, James, Fort and Austin Frazier; Caro Elizabeth Key Blackburn; and grandson Robert Allen Blackburn, Jr, along with nephews, nieces and cousins.
The Blackburn family is profoundly grateful for Sadie Gwin's caregivers Wanda Dean and Lillie Jones. And for steadfast, comprehensive household and personal care and services of Concepcion Moreno and Dora Montoya. The concern, care and responsiveness of Compassus Hospice is deeply appreciated, particularly for Stephanie, Kathy, Sharnisha, and Larry.
A Memorial Service is to be conducted at 2:00 o'clock in the afternoon on Friday, the 10th of April, 2026 at St. Martin's Episcopal Church, 717 Sage Road in Houston. Immediately following the service, all are invited to greet the family during a reception in Bagby Parish Hall.
Livestream: https://youtube.com/live/uvfqFEsrdhI?feature=share
Livestream replay is available for 3 weeks afterward.
Memorial contributions may be made to:
Sadie Gwin Blackburn Conservation Fund, River Oaks Garden Club, 2503 Westheimer, Houston, Texas 77098-1321, riveroaksgc.org.
St. Martin's Episcopal Church, 717 Sage Rd, Houston, TX 77056, www.stmartinsepiscopal.org.
Charity of choice.
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