Dennis Buck was born of hearing parents in Ohio. He was raised with 4 siblings. Interestingly, three of them are hearing and the rest are deaf. The rank of siblings along with hearing status:

1. Brian (hearing)
2. Pamela (hearing)
3. Melissa (hearing)
4. Dennis (deaf)
5. Mark (deaf)

Dennis spent all his youth going to one-on-one speech therapy because his parents believed that he should be able to have the opportunity to speak among hearing people.

Between the age of 4 and 11, he went to public mainstream school (Kennedy Patterson School) where the school's philosophy was to teach deaf students how to use lips instead of using sign language. That was during 1965, sign language was considered awful and rude because it is gesture and uses hands like animals. They considered this detrimental in the hearing world. Dennis was slapped with a wooden ruler by the teacher if he used sign language.

During this mainstream period, Dennis found himself bored in class and in trouble. His parents decided to switch him out of mainstream school to residential school for the Deaf (St. Rita School for the Deaf in Cincinnati, Ohio). In 1969, Dennis and his younger brother, Mark, went to St. Rita School for the Deaf, where Dennis and Mark learned sign language. Imagine, everyone knew sign language, a barrier-free communication school where everyone can use sign language, all faculty and students. In his senior year (1980), he left for a hearing school which was Catholic Central High School in Springfield, Ohio, there was no interpreter. He depended on lipreading from teachers and his classmates' notes. Finally, he graduated and went to Gallaudet University.

During his first year at Gallaudet University, it was so amazing because 1,500 students at that time came to Gallaudet from different countries, mostly from all over the United States. All professional people who worked at Gallaudet University used sign language. Near the end of his first year, Dennis was in a tragic accident which left him paralyzed from chest down.

Determined, Dennis enrolled Gallaudet University again in the Fall of 1981, right after the accident. He graduated Gallaudet University with Bachelors of Science in Computer Science in 1986. Later, he landed a job with Wright Patterson Air Force Base in Dayton, Ohio where his dad worked as Neural Network Researcher. Dennis received his private single-engine plane pilot license. He proved to people he can fly with special adaptive hand controls to operate an aircraft especially the Cessna 172. After working with Air Force Base for five years, he decided to move to Chicago to set up a small business - Entertainment. The business entertained people using the huge man-powered gyro-scope in 3-D space. Unfortunately, the business went sour because of legal barriers. He decided to move to the tropical state of Florida.

In 1996, he went to a Graduate Review Exam preparation class in Orlando, Florida before he enrolled in the Valencia Community College; he was pursuing his masters in Computer Engineering. He took 3 years of serious study and finally graduated from the Valencia Community College in August 1999 with Masters. During his studies, he met a wonderful woman and got married in August 1998. His wife is Rosanne Trapani-Buck who is hearing and works as an American Sign Language Interpreter Coordinator for two campuses - Valencia Community College East Campus and Valencia Community College.

During his two years in 1989 to 1992, he taught American Sign Language courses (ASL 1 - 3) at Sinclair Community College in Dayton, Ohio where the college provided an Interpreter Training Program. When he moved to Florida, he still wanted to teach and to help hearing people become great interpreters. In the Fall of 1997, he taught ASL 3 at Valencia Community College East Campus while he was a graduate student at Valencia Community College.

In January 1999, he landed a great job working for AT&T Solutions in Lake Mary. He still wants to teach during the evenings. Currently, he teaches one class: ASL 2 courses at University of Central Florida.