MEMBERSHIPS:

Life Member of American MENSA, the high I.Q. society for people with the top 2% I.Q. scores. Mark’s Stanford-Binet I.Q. score of 151 places him in the top half-percent of the population.

Texas Biomedical Instrumentation Society.

IATSE Local 484 (labor union for the entertainment & related industries).

Broadcast Music, Inc. (BMI)