Christopher Jackson, an active-duty soldier who grew up in a deaf household, learned critical values such as discipline and work ethic from living and interacting with deaf relatives. Now, he’s on a mission to encourage service and advocate for the deaf. Jackson, 34, grew up in Houston. His father is completely deaf and his mother has significant hearing impairment. Deafness runs on his father’s side of the family, and while his mother was born able to hear, she lost half of her hearing after a childhood illness. As the oldest of three children, he became their translator. Jackson also has extended family members, such as cousins, who are deaf, and he learned American Sign Language to communicate with them. By the time Jackson was 8 years old, he found himself taking on a great deal of responsibility. When bills and other mail arrived at the home, he read and translated them into ASL. …