During his early years in Dallas, Texas, Yohannan became an ordained clergyman and served as a pastor of a Native American Southern Baptist church for four years.
Other cricketers from Kerala include Tinu Yohannan, son of Olympic long jumper T. C. Yohannan and K. N. Ananthapadmanabhan (344 first class wickets).
Tinu is the son of T. C. Yohannan, a long jumper who held the national record for nearly 3 decades and represented India in the 1976 Summer Olympics in Montreal, Canada.