Jackson was one of the last of the Garrison Rangers and resigned from the Texas Rangers in 1993 when then Gov.
Ann Richards promoted several women into the ranks of the Texas Rangers. He lived in
Alpine, Texas, where he was the owner and operator of a private investigations firm. Born and raised in Anton, Texas on November 12, 1935, Joaquin was a talented athlete and went on to play basketball for West Texas State University in Canyon, Texas. Jackson had two children, Michael W. Kirkpatrick and Kelly Landrith prior to marrying his wife Shirley Conor Jackson who died on February 11, 2012, after a year-and-a-half-long illness. He had two sons with Shirley, Don Joaquin Jackson and Lance Sterling Jackson, and four grandchildren, Adam Michael, Tyler Joaquin, Ellen Elizabeth, and Ann Margaret (Maggie). After the death of his wife Shirley Jackson, Joaquin married Jewely Van Valin and they were married until his death. His son Don Joaquin served 29 years in prison on murder charges but was released in 2019. Jackson was an avid hunter, golfer, and enjoyed arrowhead hunting in his retirement. ==NRA board member==