Family, Friends & Fellow Officers Remember...

Deputy Sheriff Thalis Tucker Cook

Brewster County Sheriff's Office, Texas

End of Watch Sunday, July 21, 1918

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Reflections for Deputy Sheriff Thalis Tucker Cook

Deputy Sheriff Cook,
Just wanted you to know that even though you passed away many years ago, you are not forgotten. The Big Bend
Area Law Enforcement Officers Association is making sure that your service and sacrifice on behalf of the citizens
of Brewster County and the State of Texas are not forgotten. The Association is moving forward and making sure
that your name is included on the National Law Enforcement Officers Memorial, the Texas Peace Officer Memorial, the Sheriff's Association of Texas Lost Lawman Memorial and the Big Bend Area Law Enforcement
Officers Memorial located on the campus of Sul Ross State University in Alpine, Texas. Rest easy Thalis, we will
take it from here.

Chief Deputy ( Retired ) Ed Krevit
Big Bend Area Law Enforcement Officers Association

October 18, 2018

Deputy Sheriff Cook,
On today, the 100th anniversary of your death I would just like to say thank you for your service and sacrifice for the citizens of of Brewster County. And to your Family and loved ones, I wish to extend my deepest sympathy.


United States Border Patrol

July 21, 2018

Rest In Peace Brother LEO. You are honored and remembered on the 100th anniversary of your EOW.

Officer Mike Robinson (Ret.)
Upland Police Dept. CA

July 21, 2018

On the 100th anniversary of your death, we salute your service to your state and nation.

Stan Jefferson
Citizen of Arizona

July 20, 2018

Rest in Peace Deputy Sheriff Thalis Tucker Cook. Thank You for your Service and Sacrifice Protecting the citizens of The Great State of Texas. Your Service is Exemplary in all respects.

I Pray for Peace for your Family, Friends and Co-Workers. I also Pray that the hounds of hell forever gnaw on the rotten soul of your murderer.


Senior Special Agent B.L. Sherwood (Ret)
Port Terminal Railroad Police Houston, TX

July 20, 2016

All honor and respect to my distant cousin, he served along side my Great Grandfather Lt. Tolbert Fannin "Tol" McKinney as deputy sheriffs and rangers. Other relatives he served with include J. T. Priddy, James Ware, and Thomas Christopher "Kip" McKinney.

Jim McKinney
distant cousin

December 28, 2014

To fully appreciate the heroes of the present, we must recognize our heroes of the past. Your heroism and service is honored today, the 95th anniversary year of your death. I am priviliged to be among the first to leave a tribute to you and your storied career. Your memory lives and you continue to inspire. Thank you for your service. My cherished son Larry Lasater was a fellow police officer who was murdered in the line of duty on April 24, 2005 while serving as a Pittsburg, CA police officer.

Time never diminishes respect. Your memory will always be honored and revered. Rest In Peace

Phyllis Lasater Loya
mom of fallen Pittsburg (CA) officer Larry Lasater

January 14, 2013

Thank you sir for your outstanding Heroism and dedication to protect and serve. RIP now as you served well as a lawman.

James Kotke
Civilian / Former Officer
WSF Park Police (Wi.)

July 21, 2012

Thalis Tucker Cook was my Great Grandfather's Cousin and served with him in Brewster, Uvalde, and other Counties as Rangers and Deputy Sheriffs.
There were articles reporting their work together published in the Alpine Avalanche. My Great Grandfather was Tolbert Fannin {Tol} McKinney. Tol McKinney was the last man in the Frontier Battalion to be commissioned Lieut. and worked for John R. Hughes.

Jim McKinney

April 17, 2012

Rest in peace Brother. Thank you for your service.

Deputy S. Yates
Covington County Sheriff Dept. (Ms.)

December 15, 2010

Thank you Deputy Cook for your many years of brave service to the citizens of Texas. Your sacrifice will not be forgotten.

Officer Greg Lucas
Idalou, TX Police Department

December 15, 2010

Deputy Sheriff Cook,
Sir, it has taken over 92 years, but you are finally being honored. I would just like to say thank you for your service and sacrifice for the citizens of Brewster County.



December 13, 2010

A great man has gone to secure a safe path for those of us to follow. Thank you to you, your family and the Brewster County Sheriff's Department. Rest in Peace Brother.

Chief Steve Marshall
Washington, NH Police Department

December 12, 2010

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